Document And Entity Information - shares |
9 Months Ended | |
|---|---|---|
Sep. 28, 2019 |
Oct. 25, 2019 |
|
| Document Information [Line Items] | ||
| Entity Registrant Name | COHU INC | |
| Entity Central Index Key | 0000021535 | |
| Trading Symbol | cohu | |
| Current Fiscal Year End Date | --12-28 | |
| Entity Filer Category | Accelerated Filer | |
| Entity Current Reporting Status | Yes | |
| Entity Emerging Growth Company | false | |
| Entity Small Business | false | |
| Entity Common Stock, Shares Outstanding (in shares) | 41,266,401 | |
| Entity Shell Company | false | |
| Document Type | 10-Q | |
| Document Period End Date | Sep. 28, 2019 | |
| Document Fiscal Year Focus | 2019 | |
| Document Fiscal Period Focus | Q3 | |
| Amendment Flag | false | |
| Title of 12(b) Security | Common Stock |
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- Definition End date of current fiscal year in the format --MM-DD. No definition available.
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- Definition Fiscal period values are FY, Q1, Q2, and Q3. 1st, 2nd and 3rd quarter 10-Q or 10-QT statements have value Q1, Q2, and Q3 respectively, with 10-K, 10-KT or other fiscal year statements having FY. No definition available.
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- Definition This is focus fiscal year of the document report in CCYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006. No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD. No definition available.
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- Definition The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'. No definition available.
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- Definition Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument. No definition available.
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- Definition Indicate 'Yes' or 'No' whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure. No definition available.
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- Definition Indicate if registrant meets the emerging growth company criteria. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Boolean flag that is true when the registrant is a shell company as defined in Rule 12b-2 of the Exchange Act. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Indicates that the company is a Smaller Reporting Company (SRC). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Title of a 12(b) registered security. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Trading symbol of an instrument as listed on an exchange. No definition available.
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- Definition The carrying value of deferred revenue, net of expenses, as of the balance sheet date that is expected to be recognized as such within one year or the normal operating cycle, if longer. No definition available.
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- Definition Present value of lessee's discounted obligation for lease payments from operating and finance lease, classified as noncurrent. No definition available.
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- Definition Amount, after allowance, receivable from customers, clients, or other third-parties, and receivables classified as other due within one year or the normal operating cycle, if longer. No definition available.
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- Definition Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all domestic and foreign income tax obligations due beyond one year or the operating cycle, whichever is longer. Alternate captions include income taxes payable, noncurrent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of investment in debt and equity securities categorized neither as trading securities nor held-to-maturity securities and intended be sold or mature one year or operating cycle, if longer. No definition available.
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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of gain on the sale of property that does not qualify for gain recognition as of the balance sheet date. No definition available.
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- Definition Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences, with jurisdictional netting and classified as noncurrent. Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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| X | ||||||||||
- Definition Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of after one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Amount classified as liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount classified as liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of beyond one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Carrying value as of the balance sheet date of current portion of long-term loans payable to bank due within one year or the operating cycle if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Carrying value as of the balance sheet date of loans from a bank with maturities initially due after one year or beyond the operating cycle if longer, excluding current portion. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of lessee's right to use underlying asset under operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of expenses incurred but not yet paid classified as other, due after one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of current assets classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of noncurrent assets classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition For a classified balance sheet, the carrying amount as of the balance sheet date of the portion of the obligations recognized for the various benefits provided to former or inactive employees, their beneficiaries, and covered dependents after employment but before retirement that is payable after one year (or beyond the operating cycle if longer). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of asset related to consideration paid in advance for costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. For classified balance sheets, represents the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The cumulative amount of the reporting entity's undistributed earnings or deficit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of borrowings from a bank classified as other, maturing within one year or operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares shares in Thousands |
Sep. 28, 2019 |
Dec. 29, 2018 |
[1] | ||
|---|---|---|---|---|---|
| Preferred stock, par value (in dollars per share) | $ 1 | $ 1 | |||
| Preferred stock, shares authorized (in shares) | 1,000 | 1,000 | |||
| Preferred stock, shares issued (in shares) | 0 | 0 | |||
| Common stock, par value (in dollars per share) | $ 1 | $ 1 | |||
| Common stock, shares authorized (in shares) | 60,000 | 60,000 | |||
| Common stock, shares issued (in shares) | 41,265 | 40,763 | |||
| Common stock, shares outstanding (in shares) | 41,265 | 40,763 | |||
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| X | ||||||||||
- Definition Face amount or stated value per share of common stock. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands |
3 Months Ended | 9 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|
Sep. 28, 2019 |
Sep. 29, 2018 |
Sep. 28, 2019 |
Sep. 29, 2018 |
||||||
| Net sales | [1] | $ 143,498 | $ 86,164 | $ 441,318 | $ 281,131 | ||||
| Cost and expenses: | |||||||||
| Cost of sales (1) | [2] | 84,565 | 51,142 | 265,564 | 163,742 | ||||
| Research and development | 20,483 | 11,088 | 65,324 | 33,914 | |||||
| Selling, general and administrative | 33,690 | 15,899 | 108,404 | 50,988 | |||||
| Amortization of purchased intangible assets | 9,969 | 1,024 | 29,975 | 3,117 | |||||
| Restructuring charges | 814 | 10,720 | |||||||
| 149,521 | 79,153 | 479,987 | 251,761 | ||||||
| Income (loss) from operations | (6,023) | 7,011 | (38,669) | 29,370 | |||||
| Other (expense) income: | |||||||||
| Interest expense | (5,000) | (11) | (15,789) | (33) | |||||
| Interest income | 190 | 337 | 603 | 913 | |||||
| Foreign transaction gain (loss) | 1,630 | (232) | 1,302 | 1,220 | |||||
| Income (loss) from continuing operations before taxes | (9,203) | 7,105 | (52,553) | 31,470 | |||||
| Income tax provision | 1,277 | 2,302 | 161 | 6,897 | |||||
| Income (loss) from continuing operations | (10,480) | 4,803 | (52,714) | 24,573 | |||||
| Income from discontinued operations, net of tax | 154 | 342 | |||||||
| Net income (loss) | (10,326) | 4,803 | (52,372) | 24,573 | |||||
| Net income attributable to noncontrolling interest | 142 | 62 | |||||||
| Net income (loss) attributable to Cohu | $ (10,468) | $ 4,803 | $ (52,434) | $ 24,573 | |||||
| Weighted average shares used in computing income (loss) per share: | |||||||||
| Basic (in shares) | 41,229 | 28,948 | 41,075 | 28,814 | |||||
| Diluted (in shares) | 41,229 | 29,770 | 41,075 | 29,650 | |||||
| Cash dividends declared per share (in dollars per share) | $ 0.06 | $ 0.06 | $ 0.18 | $ 0.18 | |||||
| Basic: | |||||||||
| Income (loss) from continuing operations before noncontrolling interest (in dollars per share) | (0.25) | 0.17 | (1.28) | 0.85 | |||||
| Income from discontinued operations (in dollars per share) | 0 | 0 | |||||||
| Net income attributable to noncontrolling interest (in dollars per share) | 0 | 0 | |||||||
| Net income (loss) attributable to Cohu (in dollars per share) | (0.25) | 0.17 | (1.28) | 0.85 | |||||
| Diluted: | |||||||||
| Income (loss) from continuing operations before noncontrolling interest (in dollars per share) | (0.25) | 0.16 | (1.28) | 0.83 | |||||
| Income from discontinued operations (in dollars per share) | 0 | 0 | |||||||
| Net income attributable to noncontrolling interest (in dollars per share) | 0 | 0 | |||||||
| Net income (loss) attributable to Cohu (in dollars per share) | $ (0.25) | $ 0.16 | $ (1.28) | $ 0.83 | |||||
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| X | ||||||||||
- Definition The amount of net income (loss) attributable to noncontrolling interest per each share of common stock or unit outstanding during the reporting period. No definition available.
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| X | ||||||||||
- Definition The amount of net income (loss) attributable to the noncontrolling interest during the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. No definition available.
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| X | ||||||||||
- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Total costs of sales and operating expenses for the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount after tax of income (loss) from continuing operations attributable to the parent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The amount of net income (loss) from continuing operations per each share of common stock or unit outstanding during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The amount of net income (loss) derived from continuing operations during the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount after tax of income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Per basic share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Per diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of the cost of borrowed funds accounted for as interest expense. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount before accretion (amortization) of purchase discount (premium) of interest income and dividend income on nonoperating securities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of Net Income (Loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The net result for the period of deducting operating expenses from operating revenues. No definition available.
|
| X | ||||||||||
- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 28, 2019 |
Sep. 29, 2018 |
Sep. 28, 2019 |
Sep. 29, 2018 |
|
| Net income (loss) | $ (10,326) | $ 4,803 | $ (52,372) | $ 24,573 |
| Net income attributable to noncontrolling interest | 142 | 62 | ||
| Net income (loss) attributable to Cohu | (10,468) | 4,803 | (52,434) | 24,573 |
| Foreign currency translation adjustments | (13,276) | (475) | (14,854) | (3,435) |
| Adjustments related to postretirement benefits | 35 | (24) | 470 | 17 |
| Change in unrealized gain/loss on investments | 9 | 7 | ||
| Other comprehensive loss, net of tax | (13,241) | (490) | (14,384) | (3,411) |
| Other comprehensive loss attributable to noncontrolling interest | (4) | |||
| Other comprehensive loss attributable to Cohu | (13,241) | (490) | (14,380) | (3,411) |
| Comprehensive income (loss) | (23,567) | 4,313 | (66,756) | 21,162 |
| Comprehensive income attributable to noncontrolling interest | 142 | 58 | ||
| Comprehensive income (loss) attributable to Cohu | $ (23,709) | $ 4,313 | $ (66,814) | $ 21,162 |
| X | ||||||||||
- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of Net Income (Loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after tax and reclassification adjustments of other comprehensive income (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount after tax of other comprehensive income (loss) attributable to noncontrolling interests. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after tax of other comprehensive income (loss) attributable to parent entity. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount, after tax and reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands |
Common Stock [Member] |
Additional Paid-in Capital [Member] |
Retained Earnings [Member] |
AOCI Attributable to Parent [Member] |
Noncontrolling Interest [Member] |
Total |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Balance at Dec. 30, 2017 | $ 28,489 | $ 127,663 | $ 150,726 | $ (17,787) | $ 289,091 | |||||||||
| Net income (loss) | 24,573 | 24,573 | ||||||||||||
| Changes in cumulative translation adjustment | (3,435) | (3,435) | ||||||||||||
| Adjustments related to postretirement benefits, net of tax | 17 | 17 | ||||||||||||
| Cash dividends | (5,246) | (5,246) | ||||||||||||
| Exercise of stock options | 65 | 575 | 640 | |||||||||||
| Shares issued for restricted stock units vested | 473 | (473) | ||||||||||||
| Repurchase and retirement of stock | (167) | (3,788) | (3,955) | |||||||||||
| Share-based compensation expense | 5,496 | 5,496 | ||||||||||||
| Cumulative effect of accounting change(a) at Dec. 30, 2017 | [1] | 1,057 | 1,057 | |||||||||||
| Shares issued under ESPP | 41 | 721 | 762 | |||||||||||
| Changes in unrealized gains and losses on investments, net of tax | 7 | 7 | ||||||||||||
| Balance at Sep. 29, 2018 | 28,901 | 130,194 | 171,110 | (21,198) | 309,007 | |||||||||
| Balance at Jun. 30, 2018 | 28,883 | 128,248 | 168,040 | (20,708) | 304,463 | |||||||||
| Net income (loss) | 4,803 | 4,803 | ||||||||||||
| Changes in cumulative translation adjustment | (475) | (475) | ||||||||||||
| Adjustments related to postretirement benefits, net of tax | (24) | (24) | ||||||||||||
| Cash dividends | (1,733) | (1,733) | ||||||||||||
| Exercise of stock options | 15 | 111 | 126 | |||||||||||
| Shares issued for restricted stock units vested | 5 | (5) | ||||||||||||
| Repurchase and retirement of stock | (2) | (39) | (41) | |||||||||||
| Share-based compensation expense | 1,879 | 1,879 | ||||||||||||
| Changes in unrealized gains and losses on investments, net of tax | 9 | 9 | ||||||||||||
| Balance at Sep. 29, 2018 | 28,901 | 130,194 | 171,110 | (21,198) | 309,007 | |||||||||
| Balance at Dec. 29, 2018 | 40,763 | 419,690 | 111,670 | (25,880) | (299) | 545,944 | [2] | |||||||
| Net income (loss) | (52,372) | (52,372) | ||||||||||||
| Changes in cumulative translation adjustment | (14,850) | (4) | (14,854) | |||||||||||
| Adjustments related to postretirement benefits, net of tax | 470 | 470 | ||||||||||||
| Cash dividends | (7,383) | (7,383) | ||||||||||||
| Exercise of stock options | 37 | 293 | 330 | |||||||||||
| Shares issued for restricted stock units vested | 597 | (597) | ||||||||||||
| Repurchase and retirement of stock | (196) | (2,562) | (2,758) | |||||||||||
| Share-based compensation expense | 10,861 | 10,861 | ||||||||||||
| Cumulative effect of accounting change(a) at Dec. 29, 2018 | [3] | 10,352 | 10,352 | |||||||||||
| Shares issued under ESPP | 64 | 743 | 807 | |||||||||||
| Noncontrolling interest | 53 | (53) | ||||||||||||
| Changes in unrealized gains and losses on investments, net of tax | ||||||||||||||
| Balance at Sep. 28, 2019 | 41,265 | 428,428 | 62,320 | (40,260) | (356) | 491,397 | ||||||||
| Balance at Jun. 29, 2019 | 41,100 | 425,609 | 75,115 | (27,019) | (356) | 514,449 | ||||||||
| Net income (loss) | (10,326) | (10,326) | ||||||||||||
| Changes in cumulative translation adjustment | (13,276) | (13,276) | ||||||||||||
| Adjustments related to postretirement benefits, net of tax | 35 | 35 | ||||||||||||
| Cash dividends | (2,469) | (2,469) | ||||||||||||
| Exercise of stock options | 22 | 186 | 208 | |||||||||||
| Shares issued for restricted stock units vested | 203 | (203) | ||||||||||||
| Repurchase and retirement of stock | (60) | (670) | (730) | |||||||||||
| Share-based compensation expense | 3,506 | 3,506 | ||||||||||||
| Changes in unrealized gains and losses on investments, net of tax | ||||||||||||||
| Balance at Sep. 28, 2019 | $ 41,265 | $ 428,428 | $ 62,320 | $ (40,260) | $ (356) | $ 491,397 | ||||||||
| ||||||||||||||
| X | ||||||||||
- Definition Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption. No definition available.
|
| X | ||||||||||
- Definition Amount of paid and unpaid common stock dividends declared with the form of settlement in cash. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Net Increase or Decrease in balance of noncontrolling interest in the subsidiary during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after income tax of income (loss) including the portion attributable to nonredeemable noncontrolling interest. Excludes the portion attributable to redeemable noncontrolling interest recognized as temporary equity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount, after tax and reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Aggregate change in value for stock issued during the period as a result of employee stock purchase plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Aggregate value of stock related to Restricted Stock Awards issued during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Value of stock issued as a result of the exercise of stock options. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
Condensed Consolidated Statements of Stockholders' Equity (Unaudited) (Parentheticals) - $ / shares |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 28, 2019 |
Sep. 29, 2018 |
Sep. 28, 2019 |
Sep. 29, 2018 |
|
| Retained Earnings [Member] | ||||
| Cash dividend, per share (in dollars per share) | $ 0.06 | $ 0.06 | $ 0.18 | $ 0.18 |
| Cash dividend, per share (in dollars per share) | $ 0.06 | $ 0.06 | $ 0.18 | $ 0.18 |
| X | ||||||||||
- Definition Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands |
9 Months Ended | |
|---|---|---|
Sep. 28, 2019 |
Sep. 29, 2018 |
|
| Cash flows from operating activities: | ||
| Net income (loss) attributable to Cohu | $ (52,434) | $ 24,573 |
| Net income attributable to noncontrolling interest | 62 | |
| Adjustments to reconcile net income (loss) to net cash provided by operating activities: | ||
| (Gain) loss on disposal of assets | (350) | 29 |
| Depreciation and amortization | 45,353 | 7,276 |
| Share-based compensation expense | 10,861 | 5,497 |
| Amortization of inventory step-up and inventory related charges | 5,939 | |
| Deferred income taxes | (7,698) | (253) |
| Increase in accrued retiree medical benefits | 281 | |
| Changes in other accrued liabilities | 3,999 | (409) |
| Changes in other assets | (2,853) | (667) |
| Interest capitalized associated with cloud computing implementation | (68) | |
| Adjustment to contingent consideration liability | 657 | |
| Amortization of debt discounts and issuance costs | 826 | 0 |
| Changes in current assets and liabilities, excluding effects from acquisitions: | ||
| Accounts receivable | 21,757 | (8,092) |
| Other current assets | (7,304) | 328 |
| Inventories | (660) | (2,555) |
| Deferred profit | 1,096 | (3,463) |
| Accounts payable | (2,804) | 1,037 |
| Income taxes payable | (3,747) | 3,898 |
| Accrued compensation, warranty and other liabilities | (8,818) | 1,351 |
| Net cash provided by operating activities | 3,438 | 29,207 |
| Cash flows from investing activities, excluding effects from acquisitions: | ||
| Purchases of property, plant and equipment | (13,347) | (2,472) |
| Purchases of short-term investments | (38,700) | |
| Sales and maturities of short-term investments | 59,480 | |
| Cash received from sale of fixed assets | 1,519 | 25 |
| Net cash provided by (used in) investing activities | (11,828) | 18,333 |
| Cash flows from financing activities: | ||
| Proceeds from Rasco term loan | 3,720 | |
| Cash dividends paid | (7,359) | (5,217) |
| Repurchases of common stock, net | (1,212) | (2,553) |
| Payment of contingent consideration for Kita | (823) | |
| Repayments of long-term debt | (3,598) | (975) |
| Net cash used in financing activities | (8,449) | (9,568) |
| Effect of exchange rate changes on cash and cash equivalents | (1,812) | (1,563) |
| Net increase (decrease) in cash and cash equivalents | (18,651) | 36,409 |
| Cash and cash equivalents including discontinued operations at beginning of period | 164,921 | 134,286 |
| Cash and cash equivalents including discontinued operations at end of period | 146,270 | 170,695 |
| Cash held by discontinued operations at end of period (Note 10) | (1,176) | |
| Cash and cash equivalents from continuing operations at end of the period | 145,094 | 170,695 |
| Supplemental disclosure of cash flow information: | ||
| Cash paid for interest | 14,820 | |
| Cash paid for income taxes | 13,275 | 3,549 |
| Inventory capitalized as property, plant and equipment | 261 | 514 |
| Dividends declared but not yet paid | 2,468 | 1,734 |
| Property, plant and equipment purchases included in accounts payable | 853 | 311 |
| Capitalized cloud computing service costs included in accounts payable | 2,185 | 1,044 |
| Capitalized debt issuance costs included in current other accrued liabilities | $ 1,522 | |
| X | ||||||||||
- Definition The amortization expense related to the stepped-up basis of inventory. No definition available.
|
| X | ||||||||||
- Definition Future cash outflow to pay for capitalized cloud computing service costs that have occurred. No definition available.
|
| X | ||||||||||
- Definition Future cash outflow to pay for debt issuance costs that have occurred. No definition available.
|
| X | ||||||||||
- Definition The amount of increase (decrease) in deferred profit during the period. No definition available.
|
| X | ||||||||||
- Definition The amount of interest capitalized for cloud computing implementation. No definition available.
|
| X | ||||||||||
- Definition Represents information about inventory capitalized as property, plant and equipment. No definition available.
|
| X | ||||||||||
- Definition The amount of cash inflow (outflow) from bank debt. No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of amortization expense attributable to debt discount (premium) and debt issuance costs. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Future cash outflow to pay for purchases of fixed assets that have occurred. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including, but not limited to, disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount after tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of currency on hand, demand deposits with banks or financial institutions, and other kinds of accounts that have the general characteristics of demand deposits, held by a disposal group. No definition available.
|
| X | ||||||||||
- Definition Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of increase (decrease) from effect of exchange rate changes on cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; held in foreign currencies; including, but not limited to, disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The increase (decrease) during the period in the amount due for taxes based on the reporting entity's earnings or attributable to the entity's income earning process (business presence) within a given jurisdiction. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The increase (decrease) during the reporting period in other obligations or expenses incurred but not yet paid. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The increase (decrease) during the reporting period in other expenses incurred but not yet paid. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of increase (decrease) in current assets classified as other. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of increase (decrease) in noncurrent assets classified as other. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of Net Income (Loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cash outflow, not made soon after acquisition date of business combination, to settle contingent consideration liability up to amount recognized at acquisition date, including, but not limited to, measurement period adjustment and less amount paid soon after acquisition date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The cash outflow for securities or other assets acquired, which qualify for treatment as an investing activity and are to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of cost (reversal of cost) for pension and other postretirement benefits. No definition available.
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- Definition The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The net cash inflow or outflow resulting from the entity's share transaction. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of cash inflow from sale, maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Aggregate cash proceeds received from a combination of transactions that are classified as investing activities in which assets, which may include one or more investments, are sold to third-party buyers. This element can be used by entities to aggregate proceeds from all asset sales that are classified as investing activities. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of noncash expense for share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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Note 1 - Summary of Significant Accounting Policies |
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| Notes to Financial Statements | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Significant Accounting Policies [Text Block] |
Basis of Presentation Our fiscal years are based on a 52 - or 53 -week period ending on the last Saturday in December. The condensed consolidated balance sheet at December 29, 2018, has been derived from our audited financial statements at that date. The interim condensed consolidated financial statements as of September 28, 2019, ( also referred to as “the third quarter of fiscal 2019” and “the first nine months of fiscal 2019” ) and September 29, 2018, ( also referred to as “the third quarter of fiscal 2018” and “the first nine months of fiscal 2018” ) are unaudited. However, in management’s opinion, these financial statements reflect all adjustments (consisting only of normal, recurring items) necessary to provide a fair presentation of our financial position, results of operations and cash flows for the periods presented. Both the three - and nine -month periods ended September 28, 2019 and September 29, 2018, were comprised of 13 and 39 weeks, respectively.Our interim results are not necessarily indicative of the results that should be expected for the full year. For a better understanding of Cohu, Inc. and our financial statements, we recommend reading these interim condensed consolidated financial statements in conjunction with our audited financial statements for the year ended December 29, 2018, which are included in our 2018 Annual Report on Form 10 -K, filed with the U. S. Securities and Exchange Commission (“SEC”). In the following notes to our interim condensed consolidated financial statements, Cohu, Inc. is referred to as “Cohu”, “we”, “our” and “us”.The condensed consolidated financial statements include the accounts of Cohu and a variable interest entity (“VIE”) that was acquired as part of our acquisition of Xcerra Corporation (“Xcerra”) and in which we have determined we are the primary beneficiary. The non-controlling interest in ALBS Solutions Sdn Bhd (“ALBS”) represents the 80% equity interest that is not held by Cohu. ALBS is a privately held corporation which provides high-tech semiconductor automation systems to different industrial users. All significant consolidated transactions and balances have been eliminated in consolidation.Principles of Consolidation for Variable Interest Entities We follow ASC Topic 810 -10 -15 guidance with respect to accounting for VIEs. These entities do not have sufficient equity at risk to finance their activities without additional subordinated financial support from other parties or whose equity investors lack any of the characteristics of a controlling financial interest. A variable interest is an investment or other interest that will absorb portions of a VIE’s expected losses or receive portions of its expected residual returns and are contractual, ownership, or pecuniary in nature and that change with changes in the fair value of the entity’s net assets. A reporting entity is the primary beneficiary of a VIE and must consolidate it when that party has a variable interest, or combination of variable interests, that provides it with a controlling financial interest. A party is deemed to have a controlling financial interest if it meets both of the power and losses/benefits criteria. The power criterion is the ability to direct the activities of the VIE that most significantly impact its economic performance. The losses/benefits criterion is the obligation to absorb losses from, or right to receive benefits from, the VIE that could potentially be significant to the VIE. The VIE model requires an ongoing reconsideration of whether a reporting entity is the primary beneficiary of a VIE due to changes in facts and circumstances.As of September 28, 2019 and December 29, 2018, we consolidated one VIE. Cohu is the primary beneficiary of ALBS which qualifies as a VIE that meets the definition of a business. As such, the assets, liabilities, and noncontrolling interest of ALBS were measured at fair value upon acquisition in accordance with ASC 805, Business Combinations (“ASC 805” ). The assets and liabilities and revenues and expenses of this VIE are included in our condensed consolidated financial statements. As of September 28, 2019 and December 29, 2018, the assets and liabilities of ALBS are immaterial to Cohu and, therefore, not shown separately on our condensed consolidated balance sheets. The third -party equity interest of ALBS is referred to as noncontrolling interest. The portion of net income (loss) attributable to the noncontrolling interest of ALBS is presented as net income (loss) allocated to noncontrolling interests in the condensed consolidated statements of operations and comprehensive loss, and the portion of stockholders' equity of ALBS is presented as noncontrolling interest in the condensed consolidated statements of stockholders' equity.Reclassifications In conjunction with the acquisition of Xcerra we assessed the need to realign our financial statement presentation and certain income statement classifications were adjusted with prior periods reclassified to conform with current period presentation. The changes made were as follows:
A summary of the reclassifications described above and the impact on our condensed consolidated statements of operations is as follows:
Concentration of Credit Risk Financial instruments that potentially subject us to significant credit risk consist principally of cash equivalents, short-term investments and trade accounts receivable. We invest in a variety of financial instruments and, by policy, limit the amount of credit exposure with any one issuer.Trade accounts receivable are presented net of allowance for doubtful accounts of $0.2 million at September 28, 2019, and $0.3 million at December 29, 2018. Our customers include semiconductor manufacturers and semiconductor test subcontractors throughout many areas of the world. While we believe that our allowance for doubtful accounts is adequate and represents our best estimate at September 28, 2019, we will continue to monitor customer liquidity and other economic conditions, which may result in changes to our estimates regarding collectability.Inventories Inventories are stated at the lower of cost, determined on a first -in, first -out basis, or net realizable value. Cost includes labor, material and overhead costs. Determining net realizable value of inventories involves numerous estimates and judgments including projecting average selling prices and sales volumes for future periods and costs to complete and dispose of inventory. As a result of these analyses, we record a charge to cost of sales in advance of the period when the inventory is sold when estimated net realizable values are below our costs.Inventories by category were as follows ( in thousands ):
Property, Plant and Equipment Depreciation and amortization of property, plant and equipment, both owned and under financing lease, is calculated principally on the straight-line method based on estimated useful lives of thirty to forty years for buildings, five to fifteen years for building improvements and three to ten years for machinery, equipment and software. Land is not depreciated.Property, plant and equipment, at cost, consisted of the following (in thousands) :
Segment Information We applied the provisions of ASC Topic 280, Segment Reporting , (“ASC 280” ), which sets forth a management approach to segment reporting and establishes requirements to report selected segment information quarterly and to report annually entity-wide disclosures about products, major customers and the geographies in which the entity holds material assets and reports revenue. An operating segment is defined as a component that engages in business activities whose operating results are reviewed by the chief operating decision maker and for which discrete financial information is available. Subsequent to the acquisition of Xcerra on October 1, 2018, we have determined that our four identified operating segments are: Test Handler Group (THG), Semiconductor Tester Group (STG), Interface Solutions Group (ISG) and PCB Test Group (PTG). Our THG, STG and ISG operating segments qualify for aggregation under ASC 280 due to similarities in their customers, their economic characteristics, and the nature of products and services provided. As a result, we report in two segments, Semiconductor Test and Inspection Equipment (“Semiconductor Test & Inspection”) and PCB Test Equipment (“PCB Test”).Goodwill, Other Intangible Assets and Long-lived Assets We evaluate goodwill for impairment annually and when an event occurs or circumstances change that indicate that the carrying value may not be recoverable. We test goodwill for impairment by comparing the book value of net assets to the fair value of the reporting units. If the fair value is determined to be less than the book value, an impairment charge is recognized as the amount by which the carrying amount of goodwill exceeds the reporting unit's fair value, not to exceed the carrying amount of goodwill. We estimated the fair values of our reporting units primarily using the income approach valuation methodology that includes the discounted cash flow method, taking into consideration the market approach and certain market multiples as a validation of the values derived using the discounted cash flow methodology. Forecasts of future cash flows are based on our best estimate of future net sales and operating expenses, based primarily on customer forecasts, industry trade organization data and general economic conditions.We conduct our annual impairment test as of October 1st of each year, and have determined there was no impairment as of October 1, 2018 as we determined that the estimated fair values of our reporting units exceeded their carrying values on that date. Other events and changes in circumstances may also require goodwill to be tested for impairment between annual measurement dates. As of September 28, 2019, we do not believe that circumstances have occurred that indicate impairment of our goodwill is more-likely-than-not. In the event we determine that an interim goodwill impairment review is required in a future period, the review may result in an impairment charge, which would have a negative impact on our results of operations.We evaluate our indefinite-lived intangible assets associated with in-process research and development by comparing the fair value of each project with its carrying value. This evaluation is completed annually and whenever indicators of impairment are present. Long-lived assets, other than goodwill, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets might not be recoverable. Conditions that would necessitate an impairment assessment include a significant decline in the observable market value of an asset, a significant change in the extent or manner in which an asset is used, or any other significant adverse change that would indicate that the carrying amount of an asset or group of assets may not be recoverable. For long-lived assets, impairment losses are only recorded if the asset’s carrying amount is not recoverable through its undiscounted, probability-weighted future cash flows. We measure the impairment loss based on the difference between the carrying amount and estimated fair value.Product Warranty Product warranty costs are accrued in the period sales are recognized. Our products are generally sold with standard warranty periods, which differ by product, ranging from 12 - to 36 -months. Parts and labor are typically covered under the terms of the warranty agreement. Our warranty expense accruals are based on historical and estimated costs by product and configuration. From time-to-time we offer customers extended warranties beyond the standard warranty period. In those situations the revenue relating to the extended warranty is deferred at its estimated relative standalone selling price and recognized on a straight-line basis over the contract period. Costs associated with our extended warranty contracts are expensed as incurred.Restructuring Costs We record restructuring activities including costs for one -time termination benefits in accordance with ASC Topic 420 (“ASC 420” ), Exit or Disposal Cost Obligations. The timing of recognition for severance costs accounted for under ASC 420 depends on whether employees are required to render service until they are terminated in order to receive the termination benefits. If employees are required to render service until they are terminated in order to receive the termination benefits, a liability is recognized ratably over the future service period. Otherwise, a liability is recognized when management has committed to a restructuring plan and has communicated those actions to employees. Employee termination benefits covered by existing benefit arrangements are recorded in accordance with ASC Topic 712, Nonretirement Postemployment Benefits. These costs are recognized when management has committed to a restructuring plan and the severance costs are probable and estimable.Debt Issuance Costs We capitalized costs related to the issuance of debt. Debt issuance costs directly related to our Term B Loan are presented within noncurrent liabilities as a reduction of long-term debt in our condensed consolidated balance sheets. The amortization of such costs is recognized as interest expense using the effective interest method over the term of the respective debt issue. Amortization related to deferred debt issuance costs and original discount costs was $0.3 million and $0.8 million for the three and nine months ended September 28, 2019. We obtained the Term B Loan on October 1, 2018, as a result there were no debt issuance costs amortized during the three and nine months ended September 29, 2018. Foreign Remeasurement and Currency Translation Assets and liabilities of our wholly owned foreign subsidiaries that use the U.S. Dollar as their functional currency are re-measured using exchange rates in effect at the end of the period, except for nonmonetary assets, such as inventories and property, plant and equipment, which are re-measured using historical exchange rates. Revenues and costs are re-measured using average exchange rates for the period, except for costs related to those balance sheet items that are re-measured using historical exchange rates. Gains and losses on foreign currency transactions are recognized as incurred. During the three and nine months ended September 28, 2019, we recognized foreign exchange gains of $1.6 million and $1.3 million, respectively, in our condensed consolidated statements of operations. During the three and nine months ended September 29, 2018, we recognized a foreign exchange loss of $0.2 million and a gain of $1.2 million, respectively, in our condensed consolidated statements of operations. Certain of our foreign subsidiaries have designated the local currency as their functional currency and, as a result, their assets and liabilities are translated at the rate of exchange at the balance sheet date, while revenue and expenses are translated using the average exchange rate for the period. Cumulative foreign currency translation adjustments resulting from the translation of the financial statements are included as a separate component of stockholders’ equity.Share-Based Compensation We measure and recognize all share-based compensation under the fair value method. Our estimate of share-based compensation expense requires a number of complex and subjective assumptions including our stock price volatility, employee exercise patterns (expected life of the options) and related tax effects. The assumptions used in calculating the fair value of share-based awards represent our best estimates, but these estimates involve inherent uncertainties and the application of management judgment. Although we believe the assumptions and estimates we have made are reasonable and appropriate, changes in assumptions could materially impact our reported financial results. Reported share-based compensation is classified, in our condensed consolidated financial statements, as follows (in thousands) :
Income (Loss) Per Share Basic income (loss) per common share is computed by dividing net income (loss) by the weighted-average number of common shares outstanding during the reporting period. Diluted income (loss) per share includes the dilutive effect of common shares potentially issuable upon the exercise of stock options, vesting of outstanding restricted stock and performance stock units and issuance of stock under our employee stock purchase plan using the treasury stock method. In loss periods, potentially dilutive securities are excluded from the per share computations due to their anti-dilutive effect. For purposes of computing diluted income (loss) per share, stock options with exercise prices that exceed the average fair market value of our common stock for the period are excluded. For the three and nine months ended September 28, 2019, stock options and awards to issue approximately 459,000 and 487,000 shares of common stock were excluded from the computation, respectively. For the three months ended September 29, 2018, no stock options or awards to issue shares of common stock were excluded from the computation. For the nine months ended September 29, 2018, stock options and awards to issue approximately 12,000 shares of common stock were excluded from the computation.The following table reconciles the denominators used in computing basic and diluted income (loss) per share ( in thousands) :
Cohu has utilized the “control number” concept in the computation of diluted earnings per share to determine whether potential common stock instruments are dilutive. The control number used is income from continuing operations. The control number concept requires that the same number of potentially dilutive securities applied in computing diluted earnings per share from continuing operations be applied to all other categories of income or loss, regardless of their anti-dilutive effect on such categories. Leases We adopted ASU , as of 2016 -02, Leases (Topic 842 ) December 30, 2018. We determine if a contract contains a lease at inception. Operating leases are included in operating lease right of use (“ROU”) assets, current other accrued liabilities, and long-term lease liabilities on our condensed consolidated balance sheets. Finance leases are included in property, plant and equipment, other current accrued liabilities, and long-term lease liabilities on our condensed consolidated balance sheets.Operating lease ROU assets and operating lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at the adoption date or the commencement date for leases entered into after the adoption date. As most of our leases do not provide an implicit rate, we use our incremental borrowing rates for the remaining lease terms based on the information available at the adoption date or commencement date in determining the present value of future payments.The operating lease ROU asset also includes any lease payments made, lease incentives, favorable and unfavorable lease terms recognized in business acquisitions and excludes initial direct costs incurred and variable lease payments. Variable lease payments include estimated payments that are subject to reconciliations throughout the lease term, increases or decreases in the contractual rent payments as a result of changes in indices or interest rates and tax payments that are based on prevailing rates. Our lease terms may include renewal options to extend the lease when it is reasonably certain that we will exercise those options. In addition, we include purchase option amounts in our calculations when it is reasonably certain that we will exercise those options. Rent expense for minimum payments under operating leases is recognized on a straight-line basis over the term.Leases with an initial term of 12 months or less are not recorded on the balance sheet, but recognized in our condensed consolidated statements of operations on a straight-line basis over the lease term. We account for lease and non-lease components as a single lease component and include both in our calculation of the ROU assets and lease liabilities.We sublease certain leased assets to third parties, mainly as a result of unused space in our facilities. None of our subleases contain extension options. Variable lease payments in our subleases include tax payments that are based on prevailing rates. We account for lease and non-lease components as a single lease component.Revenue Recognition Our net sales are derived from the sale of products and services and are adjusted for estimated returns and allowances, which historically have been insignificant. We recognize revenue when the obligations under the terms of a contract with our customers are satisfied; generally, this occurs with the transfer of control of our systems, non-system products or services. In circumstances where control is not transferred until destination or acceptance, we defer revenue recognition until such events occur.Revenue for established products that have previously satisfied a customer’s acceptance requirements is generally recognized upon shipment. In cases where a prior history of customer acceptance cannot be demonstrated or from sales where customer payment dates are not determinable and in the case of new products, revenue and cost of sales are deferred until customer acceptance has been received. Our post-shipment obligations typically include installation and standard warranties. The relative standalone selling price of installation related revenue is recognized in the period the installation is performed. Service revenue is recognized over time as we transfer control to our customer for the related contract or upon completion of the services if they are short-term in nature. Spares, contactor and kit revenue is generally recognized upon shipment.Certain of our equipment sales have multiple performance obligations. These arrangements involve the delivery or performance of multiple performance obligations, and transfer of control of performance obligations may occur at different points in time or over different periods of time. For arrangements containing multiple performance obligations, the revenue relating to the undelivered performance obligation is deferred using the relative standalone selling price method utilizing estimated sales prices until satisfaction of the deferred performance obligation.Unsatisfied performance obligations primarily represent contracts for products with future delivery dates. At September 28, 2019, we have $12.2 million of revenue expected to be recognized in the future related to performance obligations that are unsatisfied (or partially unsatisfied) for contracts with original expected durations of over one year. As allowed under ASC 606, we have opted to not disclose unsatisfied performance obligations for contracts with original expected durations of less than one year.We generally sell our equipment with a product warranty. The product warranty provides assurance to customers that delivered products are as specified in the contract (an “assurance-type warranty”). Therefore, we account for such product warranties under ASC 460, Guarantees (ASC 460 ), and not as a separate performance obligation.The transaction price reflects our expectations about the consideration we will be entitled to receive from the customer and may include fixed or variable amounts. Fixed consideration primarily includes sales to customers that are known as of the end of the reporting period. Variable consideration includes sales in which the amount of consideration that we will receive is unknown as of the end of a reporting period. Such consideration primarily includes sales made to certain customers with cumulative tier volume discounts offered. Variable consideration arrangements are rare; however, when they occur, we estimate variable consideration as the expected value to which we expect to be entitled. Included in the transaction price estimate are amounts in which it is probable that a significant reversal of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved. Variable consideration that does not meet revenue recognition criteria is deferred. Our contracts are typically less than one year in duration and we have elected to use the practical expedient available in ASC 606 to expense cost to obtain contracts as they are incurred because they would be amortized over less than one year.Accounts receivable represents our unconditional right to receive consideration from our customer. Payments terms do not exceed one year from the invoice date and therefore do not include a significant financing component. To date, there have been no material impairment losses on accounts receivable. There were no material contract assets or contract liabilities recorded on our condensed consolidated balance sheet in any of the periods presented.On shipments where sales are not recognized, gross profit is generally recorded as deferred profit in our condensed consolidated balance sheet representing the difference between the receivable recorded and the inventory shipped. At September 28, 2019, we had deferred revenue totaling approximately $16.2 million, current deferred profit of $8.0 million and deferred profit expected to be recognized after one year included in noncurrent other accrued liabilities of $5.8 million. At December 29, 2018, we had deferred revenue totaling approximately $10.8 million, current deferred profit of $6.9 million and deferred profit expected to be recognized after one year included in noncurrent other accrued liabilities of $2.0 million.Net sales of our reportable segments, by type, are as follows (in thousands):
Revenue by geographic area based upon product shipment destination ( in thousands ):
A small number of customers historically have been responsible for a significant portion of our net sales. Significant customer concentration information, by reportable segment, is as follows:
Accumulated Other Comprehensive Loss Our accumulated other comprehensive loss balance totaled approximately $40.3 million and $25.9 million at September 28, 2019 and December 29, 2018, respectively, and was attributed to all non-owner changes in stockholders’ equity and consists of, on an after-tax basis where applicable, foreign currency adjustments resulting from the translation of certain of our subsidiary accounts where the functional currency is not the U.S. Dollar and adjustments related to postretirement benefits. Reclassification adjustments from accumulated other comprehensive loss during the first nine months of fiscal 2019 and 2018 were not significant.Retiree Medical Benefits We provide post-retirement health benefits to certain retired executives, one director (who is a former executive) and their eligible dependents under a noncontributory plan. These benefits are no longer offered to any other retired Cohu employees. The net periodic benefit cost incurred during the first nine months of fiscal 2019 and 2018 was not significant.Discontinued Operations Management has determined that the fixtures services business, that was acquired as part of Xcerra, does not align with Cohu’s long-term strategic plan and management is in the process of divesting this portion of the business. As a result, the assets of our fixtures business are considered “held for sale” and the operations of our fixtures business are considered “discontinued operations” as of December 29, 2018. See Note 10, “Discontinued Operations” for additional information. Unless otherwise indicated, all amounts herein relate to continuing operations.Recent Accounting Pronouncements Recently Adopted Accounting Pronouncements We adopted ASU , as of 2016 -02, Leases (Topic 842 ) December 30, 2018, using the optional transition method which allowed us to record existing leases at adoption and recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption rather than in the earliest period presented. We elected the package of practical expedients permitted under the transition guidance within the new standard, which among other things, allows us to carryforward the historical lease classification.We made an accounting policy election to not record ROU assets and lease liabilities for leases with an initial term of 12 months or less. We recognized those lease payments in our condensed consolidated statements of operations on a straight-line basis over the lease term. We also made an accounting policy election to use the practical expedient allowed in the standard to not separate lease and non-lease components when calculating the ROU asset and lease liability. Related to adoption of the new standard, we have implemented internal controls and a lease accounting technology system to track the ROU asset and lease liability balances and prepare the related footnote disclosures.Adoption of the new standard resulted in the recording of additional net lease assets and lease liabilities of approximately $30.7 million and $29.9 million, respectively, as of December 30, 2018. We had previously recorded a sale and operating leaseback transaction in accordance with Topic 840 and as a result of the adoption of the new standard, recognized $10.2 million of deferred gain as an adjustment to retained earnings. In addition, we had previously recognized assets and liabilities related to a build-to-suit designation under Topic 840 and as a result of the adoption of the new standard, derecognized assets and liabilities of $0.5 million and $0.6 million, respectively, with the difference recorded as an adjustment to retained earnings. The standard did not materially impact our consolidated net earnings and had no impact on cash flows.Recently Issued Accounting Pronouncements In June 2016, the FASB issued ASU 2016 -13, Financial Instruments-Credit Losses (Topic (“ASU 326 ): Measurement of Credit Losses on Financial Instruments2016 -13” ). In May 2019, ASU 2016 -13 was subsequently amended by ASU 2019 -04, Codification Improvements to Topic (“ASU 326, Financial Instruments-Credit Losses2019 -04” ) and ASU 2019 -05, Financial Instruments-Credit Losses (Topic (“ASU 326 ): Targeted Transition Relief2019 -05” ). ASU 2016 -13, as amended, affects trade receivables, financial assets and certain other instruments that are not measured at fair value through net income. This ASU will replace the currently required incurred loss approach with an expected loss model for instruments measured at amortized cost and is effective for financial statements issued for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. We do not expect the adoption of this guidance to have a material impact on our condensed consolidated financial statements.In August 2018, the FASB issued ASU 2018 -14, Disclosure Framework - Changes to the Disclosure Requirements for Defined Benefit Plans , which improves defined benefit disclosure requirements by removing disclosures that are not cost beneficial, clarifying disclosures’ specific requirements and adding relevant disclosure requirements. This ASU is effective for fiscal years ending after December 15, 2020 and early adoption is permitted. The amendments in this ASU are required to be applied on a retrospective basis to all periods presented. We are currently assessing and have not yet determined the impact that the adoption of ASU 2018 -14 will have on our condensed consolidated financial statements.In August 2018, the FASB issued ASU 2018 -13, Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement , which improves fair value disclosure requirements by removing disclosures that are not cost beneficial, clarifying disclosures’ specific requirements and adding relevant disclosure requirements. This ASU is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. The amendments on changes in unrealized gains and losses, the range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements, and the narrative description of measurement uncertainty should be applied prospectively for only the most recent interim or annual period presented in the initial fiscal year of adoption. All other amendments should be applied retrospectively to all periods presented upon their effective date. Early adoption is permitted and an entity can choose to early adopt any removed or modified disclosures upon issuance of this ASU and delay adoption of the additional disclosures until their effective date. We are currently assessing and have not yet determined the impact that the adoption of ASU 2018 -13 will have on our condensed consolidated financial statements. |
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- References No definition available.
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- Definition The entire disclosure for all significant accounting policies of the reporting entity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Note 2 - Business Acquisitions, Goodwill and Purchased Intangible Assets |
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| Notes to Financial Statements | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Business Combination Disclosure [Text Block] |
Xcerra Pursuant to the Agreement and Plan of Merger (the “Merger Agreement”) dated as of May 7, 2018, among Cohu, Xcerra, and Xavier Acquisition Corporation, a Delaware corporation and a wholly owned subsidiary of Cohu (“Merger Sub”), Merger Sub merged with and into Xcerra (the “Merger”), with Xcerra surviving such merger as a wholly owned subsidiary of Cohu. The Merger was effective on October 1, 2018 ( “the Effective Time”). At the Effective Time, each share of Xcerra Common Stock issued and outstanding immediately prior to the Effective Time (other than dissenting shares and shares held by Cohu, Merger Sub, Xcerra or any direct or indirect wholly owned subsidiary of Cohu or Xcerra) was converted into the right to receive, in the aggregate for all shares of Xcerra Common Stock, consideration, which totaled approximately $794.4 million as of the Effective Time.Cohu financed the Merger, including all related fees and expenses, with the following:
On October 1, 2018, Cohu entered into a Credit Agreement with Cohu, as borrower, certain of its subsidiaries as guarantor subsidiaries, the financial institutions party(ies) thereto as may from time to time be lenders, and Deutsche Bank AG New York Branch, as administrative agent and collateral agent, providing for a $350.0 million Credit Facility (the “Credit Facility”), and borrowed the full amount. Loans under the Credit Facility amortize in equal quarterly installments of 0.25% of the original principal amount thereof, with the balance payable at maturity. Subject to certain exceptions and thresholds, the Credit Facility will also require mandatory prepayments in connection with (i) excess cash flow, (ii) non-ordinary course asset sales and other dispositions and (iii) the issuance of certain debt obligations, among other things. Cohu has the right to prepay loans under the Credit Agreement in whole or in part at any time, without premium or penalty. Amounts repaid in respect of loans under the Credit Facility may not be reborrowed. All outstanding principal and interest in respect of the Credit Facility must be repaid on or before October 1, 2025. The loans under the Term Loan Facility bear interest, at Cohu’s option, at a floating annual rate equal to LIBOR plus a margin of 3.00%. The lender(s) may accelerate the payment terms of the Credit Agreement upon the occurrence of certain events of default as set forth therein, which include: the failure of Cohu to make timely payments of amounts due under the Credit Agreement, the failure of Cohu to adhere to the representations and covenants set forth in the Credit Agreement, the failure to provide notice of any event that causes a material adverse effect or to provide other required notices, upon the event that related collateral agreements become ineffective, upon the event that certain legal judgments are entered against Cohu, the insolvency of Cohu, or upon the change of control of Cohu. Any event that could require us to repay debt prior to its due date could have a material adverse impact on our financial condition and results of operations.Immediately prior to the Effective Time, each Xcerra RSU that was vested was cancelled and the holder received cash and share consideration for the outstanding shares. Each unvested RSU held by employees of Xcerra were assumed by Cohu and converted into an RSU representing the number of whole shares of Cohu common stock based on a conversion formula resulting in the number of assumed RSUs described above. The acquisition method of accounting is based on ASC 805, and uses the fair value concepts defined in ASC 820, Fair Value Measurement (“ASC 820 ” ). The purchase price allocation described herein contains adjustments made during the post-acquisition measurement period, which were made as a result of obtaining new facts and circumstances related to certain assets acquired and liabilities assumed as of the date of acquisition. The net impact of the measurement period adjustments were offset against goodwill.The acquisition was nontaxable to Cohu and certain of the assets acquired, including goodwill and intangibles, will not be deductible for tax purposes. The acquired assets and liabilities of Xcerra were recorded at their respective fair values including an amount for goodwill which represents the purchase price paid in excess of the fair value of net tangible and intangible assets acquired, and is attributable primarily to expected synergies, economies of scale and the assembled workforce of Xcerra. Goodwill has been allocated to our THG, STG, ISG and PTG operating segments.ASC 805 requires, among other things, that most assets acquired and liabilities assumed be recognized at their fair values as of the acquisition date. In addition, ASC 805 requires that the consideration transferred be measured at the date the merger is completed at the then-current market price. The market price of the shares of Cohu Common Stock at the Effective Time was $25.10 which was based upon the closing price of shares of Cohu Common Stock on the NASDAQ Global Select Market on Friday, September 28, 2018, the last day of trading prior to the Effective Time.ASC 820 defines the term “fair value” and sets forth the valuation requirements for any asset or liability measured at fair value, expands related disclosure requirements and specifies a hierarchy of valuation techniques based on the nature of the inputs used to develop the fair value measurements. Fair value is defined in ASC 820 as “the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date.” This is an exit price concept for the valuation of the asset or liability. In addition, market participants are assumed to be buyers and sellers in the principal (or the most advantageous) market for the asset or liability. Fair value measurements for an asset assume the highest and best use by these market participants. As a result of these standards, Cohu may be required to record the fair value of assets which are not intended to be used or sold and/or to value assets at fair values that do not reflect Cohu’s intended use of those assets. Many of these fair value measurements can be highly subjective, and it is possible that other professionals, applying reasonable judgment to the same facts and circumstances, could develop and support a range of alternative estimated amounts.Under ASC 805, acquisition-related transaction costs (e.g., advisory, legal, investment banking and other professional fees) are not included as a component of consideration transferred but are accounted for as expenses in the periods in which such costs are incurred. Total Merger-related transaction costs, that exclude other costs related to employee termination and restructuring, incurred by Cohu were $0.4 million and $5.2 million in the first nine months ended September 28, 2019 and September 29, 2018, respectively.The table below summarizes the assets acquired and liabilities assumed as of the acquisition date, October 1, 2018, with purchase price allocation adjustments made subsequent to the preliminary purchase price allocation (in thousands ):
We recorded a $19.6 million step-up of inventory to its fair value as of the acquisition date.The allocation of the intangible assets subject to amortization is as follows (in thousands) :
Acquired intangible assets reported above are being amortized using the straight-line method over their estimated useful lives which approximates the pattern of how the economic benefit is expected to be used. This includes amounts allocated to customer relationships because of anticipated high customer retention rates that are common in the semiconductor capital equipment industry. The value assigned to developed technology was determined by using the multi-period excess earnings method under the income approach. Developed technology, which comprises products that have reached technological feasibility, includes the products in Xcerra’s product line. The revenue estimates used to value the developed technology were based on estimates of relevant market sizes and growth factors, expected trends in technology and the nature and expected timing of new product introductions by Xcerra and competitors. The estimated cash flows were based on revenues for the developed technology net of operating expenses and net of contributory asset charges. The discount rate utilized to discount the net cash flows of the developed technology to present value was based on the risk associated with the respective cash flows taking into consideration the perceived risk of the technology relative to the other acquired assets, the weighted average cost of capital, the internal rate of return, and the weighted average return on assets. The value assigned to customer relationships was determined by using the with and without method under the income approach, which analyzes the difference in discounted cash flows generated with the customer relationships in place compared to the discounted cash flows generated without the customer relationships in place. In-process research and development (“IPR&D”) represents the estimated fair value assigned to research and development projects acquired in a business combination that have not been completed at the date of acquisition and which have no alternative future use. IPR&D is initially accounted for as an indefinite-lived intangible asset. Once a project reaches technological feasibility amounts capitalized related to the project are reclassified to developed technology and the intangible asset begins to be amortized over its estimated useful life. For the IPR&D, additional research and development will be required to assess technological feasibility.The value assigned to backlog acquired was estimated based upon the contractual nature of the backlog as of October 1, 2018, using the income approach to discount back to present value the cash flows attributable to the backlog.The value assigned to trademarks and trade names was estimated using the relief-from-royalty method of the income approach. This approach is based on the assumption that in lieu of ownership, a company would be willing to pay a royalty in order to exploit the related benefits of this intangible asset. In our estimate of the fair value of Xcerra’s net assets, Cohu identified leases that appear to be at both favorable and unfavorable rates compared to current market rates. Goodwill and Intangible Assets Changes in the carrying value of goodwill during the year ended December 29, 2018, and the nine -month period ended September 28, 2019, by segment, were as follows (in thousands ):
Purchased intangible assets, subject to amortization are as follows ( in thousands ):
* Favorable leases were reclassified from intangible assets, net to operating lease right of use assets on December 30, 2018 as a result of our adoption of ASU 2016 -2, Leases (Topic 842 )The table above excludes $22.9 million and $36.3 million of IPR&D, at September 28, 2019 and December 29, 2018, respectively, which has an indefinite life and is subject to impairment or future amortization as developed technology when the projects are completed. During the nine months ended September 28, 2019, we completed certain projects previously included in IPR&D and transferred $13.2 million to developed technology. Changes in the carrying values of purchased intangible assets presented above are a result of the impact of fluctuation in currency exchange rates.Amortization expense related to intangible assets was approximately $10.0 million in the third quarter of fiscal 2019 and $30.0 million in the first nine months of fiscal 2019. Amortization expense related to intangible assets was approximately $1.0 million in the third quarter of fiscal 2018 and $3.1 million in the first nine months of fiscal 2018. The increase in amortization expense in the current year is the result of amortization of assets acquired in the Xcerra transaction. |
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- Definition The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Note 3 - Borrowings and Credit Agreements |
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| Notes to Financial Statements | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Debt Disclosure [Text Block] |
The following table is a summary of our borrowings as of September 28, 2019 and December 29, 2018 ( in thousands) :
Credit Agreement On October 1, 2018, we entered into a Credit Agreement providing for a $350.0 million Credit Facility and borrowed the full amount. Loans under the Credit Facility amortize in equal quarterly installments of 0.25% of the original principal amount, with the balance payable at maturity. All outstanding principal and interest in respect of the Credit Facility must be repaid on or before October 1, 2025. The loans under the Term Loan Facility bear interest, at Cohu’s option, at a floating annual rate equal to LIBOR plus a margin of 3.00%. At September 28, 2019, the outstanding loan balance, net of discount and deferred financing costs, was $338.8 million and $2.4 million of the outstanding balance is presented as current installments of long-term debt in our condensed consolidated balance sheets. As of September 28, 2019, the fair value of the debt was $332.2 million. The measurement of the fair value of debt is based on the average of the bid and ask trading quotes as of September 28, 2019 and is considered a Level 2 fair value measurement. See Note 2, “Business Acquisitions, Goodwill and Purchased Intangible Assets” for additional information on the Credit Facility.Kita Term Loans As a result of our acquisition of Kita, we assumed term loans from a series of Japanese financial institutions primarily related to the expansion of Kita’s facility in Osaka, Japan. The loans are collateralized by the facility and land, carry interest rates ranging from 0.05% to 0.44%, and expire at various dates through 2034. At September 28, 2019, the outstanding loan balance was $4.0 million and $0.5 million of the outstanding balance is presented as current installments of long-term debt in our consolidated balance sheets. The fair value of the debt approximates the carrying value at September 28, 2019. The term loans are denominated in Japanese Yen and, as a result, amounts disclosed herein will fluctuate because of changes in currency exchange rates. Xcerra Term Loan As a result of our acquisition of Xcerra, we assumed a term loan related to the purchase of Xcerra’s facility in Rosenheim, Germany. The loan is payable over 10 years at an annual interest rate of 2.35%. Principal plus accrued interest is due quarterly over the duration of the term loan ending in March 2024. At September 28, 2019, the outstanding loan balance was $1.5 million and $0.3 million of the outstanding balance is presented as current installments of long-term debt in our consolidated balance sheets. The fair value of the debt approximates the carrying value at September 28, 2019. The term loan is denominated in Euros and, as a result, amounts disclosed herein will fluctuate because of changes in currency exchange rates. Rasco Term Loan On July 26, 2019, our wholly owned subsidiary Rasco GmbH entered into a term loan agreement with a financial institution in Germany that provided €3.4 million (Euro) that is being used to finance the expansion of our facility in Kolbermoor, Germany. The facility expansion project will allow us to combine the operations of multiple subsidiaries in one location as part of our strategic restructuring program. The loan is secured by the land and the existing building on the site. The loan is payable over 10 years at an annual interest rate of 0.8%. Principal repayments will be made over 8 years starting at the end of 2021. Only interest will be due each quarter starting in September 2019 and principal plus accrued interest will be due each quarter starting at the end of December, 2021. At September 28, 2019, the outstanding loan balance was $3.7 million with none of the outstanding balance being presented as current installments of long-term debt in our consolidated balance sheets based on contractual due dates. The term loan is denominated in Euros and, as a result, amounts disclosed herein will fluctuate because of changes in currency exchange rates. The fair value of the debt approximates the carrying value at September 28, 2019. Lines of Credit As a result of our acquisition of Kita, we assumed a series of revolving credit facilities with various financial institutions in Japan. The credit facilities renew monthly and provide Kita with access to working capital totaling up to $8.9 million. At September 28, 2019, total borrowings outstanding under the revolving lines of credit were $3.3 million. As these credit facility agreements renew monthly, they have been included in short-term borrowings in our condensed consolidated balance sheet.The revolving lines of credit are denominated in Japanese Yen and, as a result, amounts disclosed herein will fluctuate because of changes in currency exchange rates. Our wholly owned Ismeca subsidiary has one available line of credit which provides it with borrowings of up to a total of 2.0 million Swiss Francs. At September 28, 2019 and December 29, 2018 no amounts were outstanding under this line of credit. |
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Note 4 - Restructuring Charges |
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| Restructuring and Related Activities Disclosure [Text Block] |
Subsequent to the acquisition of Xcerra on October 1 st , during the fourth quarter of 2018, we began a strategic restructuring program designed to reposition our organization and improve our cost structure as part of our targeted integration plan regarding the recently acquired Xcerra (“Integration Program”). See Note 2, “Business Acquisitions, Goodwill and Purchased Intangible Assets” for additional information regarding the acquisition of Xcerra. As part of the Integration Program we will consolidate our global handler and contactor manufacturing operations and expect to close our manufacturing operations in Penang, Malaysia and Fontana, California by the end of calendar year 2019. Relating to the facility consolidation actions, we notified certain impacted employees of a reduction in force program. In the second quarter of 2019, we entered into a social plan (“Plan”) with the German labor organization representing certain of the employees of our wholly owned subsidiary, Multitest elektronische Systeme GmbH, as part of our Integration Program. The Plan will reduce headcount, enable us to consolidate the facilities of our multiple operations located near Rosenheim, Germany, as well as transition certain manufacturing to other lower cost regions. The facility consolidation and reduction in force programs are being implemented as part of a comprehensive review of our operations and are intended to streamline and reduce our operating cost structure and capitalize on acquisition synergies.As a result of the activities described above, we recognized total pretax charges of $10.7 million for the first nine months ended September 28, 2019, that are within the scope of ASC 420, Exit or Disposal Cost Obligations (“ASC 420” ). All costs of the Integration Program were, and are expected to be, incurred by our Semiconductor Test & Inspection segment.Costs associated with restructuring activities are presented in our condensed consolidated statements of operations as restructuring charges, except for certain costs associated with inventory charges related to the decision to end manufacturing of certain of Xcerra’s semiconductor test handler products, which are classified within cost of sales. Other restructuring costs include expenses for professional fees associated with employee severance and impairments of fixed assets. The following table summarizes the activity within the restructuring related accounts for the Integration Program during the three months ended September 28, 2019 (in thousands) :
At September 28, 2019, our total accrual for restructuring related items is reflected within current liabilities of our condensed consolidated balance sheets as these amounts are expected to be paid out within a year. The estimated costs associated with the employee severance and facility consolidation actions will be paid predominantly in cash, with the exception of the amortization of leasehold improvements which is non-cash. |
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- Definition The entire disclosure for restructuring and related activities. Description of restructuring activities such as exit and disposal activities, include facts and circumstances leading to the plan, the expected plan completion date, the major types of costs associated with the plan activities, total expected costs, the accrual balance at the end of the period, and the periods over which the remaining accrual will be settled. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Note 5 - Financial Instruments Measured at Fair Value |
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| Fair Value Measurement and Measurement Inputs, Recurring and Nonrecurring [Text Block] |
Our cash, cash equivalents, and short-term investments consisted primarily of cash and other investment grade securities. We do not hold investment securities for trading purposes. All short-term investments are classified as available-for-sale and recorded at fair value. Investment securities are exposed to market risk due to changes in interest rates and credit risk and we monitor credit risk and attempt to mitigate exposure by making high-quality investments and through investment diversification.Gains and losses on investments are calculated using the specific-identification method and are recognized during the period in which the investment is sold or when an investment experiences an other-than-temporary decline in value. Factors that could indicate an impairment exists include, but are not limited to: earnings performance, changes in credit rating or adverse changes in the regulatory or economic environment of the asset. Gross realized gains and losses on sales of short-term investments are included in interest income. Realized gains and losses for the periods presented were not significant.Investments that we have classified as short-term, by security type, are as follows ( in thousands ) :
Effective maturities of short-term investments are as follows (in thousands) :
Accounting standards pertaining to fair value measurements establish a three -tier fair value hierarchy, which prioritizes the inputs used in measuring fair value. These tiers include: Level 1, defined as observable inputs such as quoted prices in active markets; Level 2, defined as inputs other than quoted prices in active markets that are either directly or indirectly observable; and Level 3, defined as unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions. When available, we use quoted market prices to determine the fair value of our investments, and they are included in Level 1. When quoted market prices are unobservable, we use quotes from independent pricing vendors based on recent trading activity and other relevant information, and they are included in Level 2. The following table summarizes, by major security type, our financial instruments that are measured at fair value on a recurring basis and are categorized using the fair value hierarchy (in thousands) :
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- Definition The entire disclosure of the fair value measurement of assets and liabilities, which includes financial instruments measured at fair value that are classified in shareholders' equity, which may be measured on a recurring or nonrecurring basis. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Note 6 - Employee Stock Benefit Plans |
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| Share-based Payment Arrangement [Text Block] |
Our 2005 Equity Incentive Plan (the “2005 Plan”) is a broad-based, long-term retention program intended to attract, motivate, and retain talented employees as well as align stockholder and employee interests. Awards that may be granted under the program include, but are not limited to, non-qualified and incentive stock options, restricted stock units, and performance stock units. We settle employee stock option exercises, employee stock purchase plan purchases, and the vesting of restricted stock units, and performance stock units with newly issued common shares. At September 28, 2019, there were 2,507,028 shares available for future equity grants under the 2005 Plan.Stock Options Stock options may be granted to employees, consultants and non-employee directors to purchase a fixed number of shares of our common stock. The exercise prices of options granted are at least equal to the fair market value of our common stock on the dates of grant and options vest and become exercisable in annual increments that range from one to four years from the date of grant. Stock options granted under the 2005 Plan have a maximum contractual term of ten years. In the first nine months of fiscal 2019 we did not grant any stock options and we issued 36,650 shares of our common stock on the exercise of options that were granted previously.At September 28, 2019, we had 368,276 stock options exercisable and outstanding. These options had a weighted-average exercise price of $10.34 per share, an aggregate intrinsic value of approximately $1.2 million and the weighted average remaining contractual term was approximately 3.0 years.Restricted Stock Units We grant restricted stock units (“RSUs”) to certain employees, consultants and directors. RSUs vest in annual increments that range from one to four years from the date of grant. Prior to vesting, RSUs do not have dividend equivalent rights, do not have voting rights and the shares underlying the RSUs are not considered issued and outstanding. New shares of our common stock will be issued on the date the RSUs vest net of the minimum statutory tax withholding requirements to be paid by us on behalf of our employees. As a result, the actual number of shares issued will be fewer than the actual number of RSUs outstanding at September 28, 2019. In the first nine months of fiscal 2019 we awarded 670,737 RSUs and we issued 560,795 shares of our common stock on vesting of previously granted awards. At September 28, 2019, we had 1,331,427 RSUs outstanding with an aggregate intrinsic value of approximately $17.8 million and the weighted average remaining vesting period was approximately 1.4 years.Performance Stock Units We also grant performance stock units (“PSUs”) to senior executives as a part of our long-term equity compensation program. The number of shares of common stock that will ultimately be issued to settle PSUs granted in 2019, 2018 and 2017 ranges from 25% to 200% of the number granted and is determined based on certain performance criteria over a three -year measurement period. The performance criteria for the PSUs are based on a combination of our annualized Total Shareholder Return (“TSR”) for the performance period and the relative performance of our TSR compared with the annualized TSR of certain peer companies for the performance period. PSUs granted in 2019, 2018 and 2017 vest 100% on the third anniversary of their grant, assuming achievement of the applicable performance criteria.We estimated the fair value of the PSUs using a Monte Carlo simulation model on the date of grant. Compensation expense is recognized ratably over the derived service period. New shares of our common stock will be issued on the date the PSUs vest net of the minimum statutory tax withholding requirements to be paid by us on behalf of our employees. As a result, the actual number of shares issued will be fewer than the actual number outstanding at September 28, 2019. In the first nine months of fiscal 2019, we awarded 167,226 PSUs and we issued 35,696 shares of our common stock on vesting of previously granted awards. At September 28, 2019, we had 364,194 PSUs outstanding with an aggregate intrinsic value of approximately $4.9 million and the weighted average remaining vesting period was approximately 1.6 years.Employee Stock Purchase Plan The Cohu, Inc. 1997 Employee Stock Purchase Plan (“the ESPP”) provides for the issuance of shares of our common stock. Under the ESPP, eligible employees may purchase shares of Cohu common stock through payroll deductions at a price equal to 85 percent of the lower of the fair market value of Cohu common stock at the beginning or end of each 6 -month purchase period, subject to certain limits. During the first nine months of fiscal 2019, 63,998 shares of our common stock were sold to our employees under the ESPP leaving 1,034,612 shares available for future issuance. |
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Note 7 - Income Taxes |
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| Income Tax Disclosure [Text Block] |
Ordinarily, interim tax provisions are calculated using the estimated effective tax rate (“ETR”) expected to be applicable for the full fiscal year. However, when a reliable estimate of the annual ETR cannot be made, the actual ETR for the year-to-date period may be the best estimate of the annual ETR. For the three and nine months ended September 28, 2019, we used the actual year-to-date ETR in computing our tax provision, as a reliable estimate of the 2019 annual ETR cannot be made, since relatively small changes in our projected income produce a significant variation in our ETR. In computing the tax provision for the three and nine months ended September 29, 2018, we used the ETR expected to be applicable for the full fiscal year. The ETR on income or loss from continuing operations for the three months ended September 28, 2019 and September 29, 2018 was (13.9 )% and 32.4%, respectively, and (0.3 )% and 21.9% for the nine months ended September 28, 2019 and September 29, 2018, respectively. The tax provision on income or loss from continuing operations in 2019 and 2018 differs from the U.S. federal statutory rate primarily due to the lack of a tax benefit on our domestic losses as a result of our valuation allowance on deferred tax assets, foreign income taxed at different rates, changes in our deferred tax asset valuation allowance, withholding tax, state taxes and interest related to unrecognized tax benefits.Our German subsidiary’s income tax returns for 2012 to 2016 are currently under routine examination by tax authorities in Germany. We believe our financial statement accruals for income taxes are appropriate.There was no three and nine -month periods ended September 28, 2019 and September 29, 2018. |
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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Note 8 - Segment and Geographic Information |
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| Segment Reporting Disclosure [Text Block] |
The summary below presents our current segments, Semiconductor Test & Inspection and PCB Test, for the three - and nine -month periods ended September 28, 2019 and September 29, 2018. Prior to the acquisition of Xcerra on October 1, 2018, historical amounts of Cohu’s semiconductor equipment segment would have been reported in our Semiconductor Test & Inspection segment and have been presented accordingly.Financial information by reportable segment is as follows (in thousands) :
The following table summarizes our total assets by reportable business segment (in thousands) :
For revenues by geography and information on customer concentration, see Note 1, “Summary of Significant Accounting Policies”. |
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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Note 9 - Leases |
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| Lessee, Leases [Text Block] |
We lease certain of our facilities, equipment and vehicles under non-cancelable operating and finance leases. Leases with initial terms with 12 months or less are not recorded on the condensed consolidated balance sheet, but we recognized those lease payments in the condensed consolidated statements of operations on a straight-line basis over the lease term. Lease and non-lease components are included in the calculation of the ROU asset and lease liabilities.Our leases have remaining lease terms of 1 year to 38 years, some of which include one or more options to extend the leases for up to 25 years. Our lease term includes renewal terms when we are reasonably certain we will exercise the renewal options.We sublease certain leased assets to third parties, mainly as a result of unused space in our facilities. Supplemental balance sheet information related to leases was as follows:
The components of lease expense were as follows:
Future minimum lease payments at September 28, 2019, are as follows:
Supplemental cash flow information related to leases was as follows:
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- Definition The entire disclosure for operating and finance leases of lessee. No definition available.
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- References No definition available.
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Note 10 - Discontinued Operations |
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| Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] |
On October 1, 2018, we acquired a fixtures services business as part of Xcerra. In the fourth quarter of 2018, our management determined that this business did not align with our core business and was not a strategic fit within our organization. As a result, the fixtures services business has been marketed for sale since we acquired Xcerra on October 1, 2018. We expect to complete the sale of this business within 12 months and it qualifies to be reported as discontinued operations. For financial statement purposes, the results of operations for this business have been segregated from those of continuing operations and are presented in our condensed consolidated financial statements as discontinued operations.Balance sheet information for our fixtures services business presented as discontinued operations is summarized as follows (in thousands) :
Operating results of our discontinued segment are summarized as follows (in thousands) :
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- References No definition available.
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- Definition The entire disclosure related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Note 11 - Contingencies |
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| Contingencies Disclosure [Text Block] |
From time-to-time we are involved in various legal proceedings, examinations by various tax authorities and claims that have arisen in the ordinary course of our business. The outcome of any litigation is inherently uncertain. While there can be no assurance, we do not believe at the present time that the resolution of these matters will have a material adverse effect on our assets, financial position or results of operations. |
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- References No definition available.
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- Definition The entire disclosure for loss and gain contingencies. Describes any existing condition, situation, or set of circumstances involving uncertainty as of the balance sheet date (or prior to issuance of the financial statements) as to a probable or reasonably possible loss incurred by an entity that will ultimately be resolved when one or more future events occur or fail to occur, and typically discloses the amount of loss recorded or a range of possible loss, or an assertion that no reasonable estimate can be made. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Note 12 - Guarantees |
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| Commitments Contingencies and Guarantees [Text Block] |
Product Warranty Our products are generally sold with warranty periods that range from 12 to 36 months following sale or acceptance. The product warranty promises customers that delivered products are as specified in the contract (an “assurance-type warranty”). Therefore, we account for such product warranties under ASC 460, and not as a separate performance obligation. Parts and labor are covered under the terms of the warranty agreement. The warranty provision is based on historical and projected experience by product and configuration.Changes in accrued warranty were as follows ( in thousands ):
Accrued warranty amounts expected to be incurred after one year are included in noncurrent other accrued liabilities in the condensed consolidated balance sheet. These amounts total $0.2 September 28, 2019 and December 29, 2018. |
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- Definition The entire disclosure for commitments, contingencies, and guarantees. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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Significant Accounting Policies (Policies) |
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| Basis of Accounting, Policy [Policy Text Block] | Basis of Presentation Our fiscal years are based on a 52 - or 53 -week period ending on the last Saturday in December. The condensed consolidated balance sheet at December 29, 2018, has been derived from our audited financial statements at that date. The interim condensed consolidated financial statements as of September 28, 2019, ( also referred to as “the third quarter of fiscal 2019” and “the first nine months of fiscal 2019” ) and September 29, 2018, ( also referred to as “the third quarter of fiscal 2018” and “the first nine months of fiscal 2018” ) are unaudited. However, in management’s opinion, these financial statements reflect all adjustments (consisting only of normal, recurring items) necessary to provide a fair presentation of our financial position, results of operations and cash flows for the periods presented. Both the three - and nine -month periods ended September 28, 2019 and September 29, 2018, were comprised of 13 and 39 weeks, respectively.Our interim results are not necessarily indicative of the results that should be expected for the full year. For a better understanding of Cohu, Inc. and our financial statements, we recommend reading these interim condensed consolidated financial statements in conjunction with our audited financial statements for the year ended December 29, 2018, which are included in our 2018 Annual Report on Form 10 -K, filed with the U. S. Securities and Exchange Commission (“SEC”). In the following notes to our interim condensed consolidated financial statements, Cohu, Inc. is referred to as “Cohu”, “we”, “our” and “us”.The condensed consolidated financial statements include the accounts of Cohu and a variable interest entity (“VIE”) that was acquired as part of our acquisition of Xcerra Corporation (“Xcerra”) and in which we have determined we are the primary beneficiary. The non-controlling interest in ALBS Solutions Sdn Bhd (“ALBS”) represents the 80% equity interest that is not held by Cohu. ALBS is a privately held corporation which provides high-tech semiconductor automation systems to different industrial users. All significant consolidated transactions and balances have been eliminated in consolidation. |
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| Consolidation, Variable Interest Entity, Policy [Policy Text Block] | Principles of Consolidation for Variable Interest Entities We follow ASC Topic 810 -10 -15 guidance with respect to accounting for VIEs. These entities do not have sufficient equity at risk to finance their activities without additional subordinated financial support from other parties or whose equity investors lack any of the characteristics of a controlling financial interest. A variable interest is an investment or other interest that will absorb portions of a VIE’s expected losses or receive portions of its expected residual returns and are contractual, ownership, or pecuniary in nature and that change with changes in the fair value of the entity’s net assets. A reporting entity is the primary beneficiary of a VIE and must consolidate it when that party has a variable interest, or combination of variable interests, that provides it with a controlling financial interest. A party is deemed to have a controlling financial interest if it meets both of the power and losses/benefits criteria. The power criterion is the ability to direct the activities of the VIE that most significantly impact its economic performance. The losses/benefits criterion is the obligation to absorb losses from, or right to receive benefits from, the VIE that could potentially be significant to the VIE. The VIE model requires an ongoing reconsideration of whether a reporting entity is the primary beneficiary of a VIE due to changes in facts and circumstances.As of September 28, 2019 and December 29, 2018, we consolidated one VIE. Cohu is the primary beneficiary of ALBS which qualifies as a VIE that meets the definition of a business. As such, the assets, liabilities, and noncontrolling interest of ALBS were measured at fair value upon acquisition in accordance with ASC 805, Business Combinations (“ASC 805” ). The assets and liabilities and revenues and expenses of this VIE are included in our condensed consolidated financial statements. As of September 28, 2019 and December 29, 2018, the assets and liabilities of ALBS are immaterial to Cohu and, therefore, not shown separately on our condensed consolidated balance sheets. The third -party equity interest of ALBS is referred to as noncontrolling interest. The portion of net income (loss) attributable to the noncontrolling interest of ALBS is presented as net income (loss) allocated to noncontrolling interests in the condensed consolidated statements of operations and comprehensive loss, and the portion of stockholders' equity of ALBS is presented as noncontrolling interest in the condensed consolidated statements of stockholders' equity. |
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| Reclassification, Policy [Policy Text Block] | Reclassifications In conjunction with the acquisition of Xcerra we assessed the need to realign our financial statement presentation and certain income statement classifications were adjusted with prior periods reclassified to conform with current period presentation. The changes made were as follows:
A summary of the reclassifications described above and the impact on our condensed consolidated statements of operations is as follows:
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| Concentration Risk, Credit Risk, Policy [Policy Text Block] | Concentration of Credit Risk Financial instruments that potentially subject us to significant credit risk consist principally of cash equivalents, short-term investments and trade accounts receivable. We invest in a variety of financial instruments and, by policy, limit the amount of credit exposure with any one issuer.Trade accounts receivable are presented net of allowance for doubtful accounts of $0.2 million at September 28, 2019, and $0.3 million at December 29, 2018. Our customers include semiconductor manufacturers and semiconductor test subcontractors throughout many areas of the world. While we believe that our allowance for doubtful accounts is adequate and represents our best estimate at September 28, 2019, we will continue to monitor customer liquidity and other economic conditions, which may result in changes to our estimates regarding collectability. |
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| Inventory, Policy [Policy Text Block] | Inventories Inventories are stated at the lower of cost, determined on a first -in, first -out basis, or net realizable value. Cost includes labor, material and overhead costs. Determining net realizable value of inventories involves numerous estimates and judgments including projecting average selling prices and sales volumes for future periods and costs to complete and dispose of inventory. As a result of these analyses, we record a charge to cost of sales in advance of the period when the inventory is sold when estimated net realizable values are below our costs.Inventories by category were as follows ( in thousands ):
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| Property, Plant and Equipment, Policy [Policy Text Block] | Property, Plant and Equipment Depreciation and amortization of property, plant and equipment, both owned and under financing lease, is calculated principally on the straight-line method based on estimated useful lives of thirty to forty years for buildings, five to fifteen years for building improvements and three to ten years for machinery, equipment and software. Land is not depreciated.Property, plant and equipment, at cost, consisted of the following (in thousands) :
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| Segment Reporting, Policy [Policy Text Block] | Segment Information We applied the provisions of ASC Topic 280, Segment Reporting , (“ASC 280” ), which sets forth a management approach to segment reporting and establishes requirements to report selected segment information quarterly and to report annually entity-wide disclosures about products, major customers and the geographies in which the entity holds material assets and reports revenue. An operating segment is defined as a component that engages in business activities whose operating results are reviewed by the chief operating decision maker and for which discrete financial information is available. Subsequent to the acquisition of Xcerra on October 1, 2018, we have determined that our four identified operating segments are: Test Handler Group (THG), Semiconductor Tester Group (STG), Interface Solutions Group (ISG) and PCB Test Group (PTG). Our THG, STG and ISG operating segments qualify for aggregation under ASC 280 due to similarities in their customers, their economic characteristics, and the nature of products and services provided. As a result, we report in two segments, Semiconductor Test and Inspection Equipment (“Semiconductor Test & Inspection”) and PCB Test Equipment (“PCB Test”). |
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| Goodwill and Intangible Assets, Policy [Policy Text Block] | Goodwill, Other Intangible Assets and Long-lived Assets We evaluate goodwill for impairment annually and when an event occurs or circumstances change that indicate that the carrying value may not be recoverable. We test goodwill for impairment by comparing the book value of net assets to the fair value of the reporting units. If the fair value is determined to be less than the book value, an impairment charge is recognized as the amount by which the carrying amount of goodwill exceeds the reporting unit's fair value, not to exceed the carrying amount of goodwill. We estimated the fair values of our reporting units primarily using the income approach valuation methodology that includes the discounted cash flow method, taking into consideration the market approach and certain market multiples as a validation of the values derived using the discounted cash flow methodology. Forecasts of future cash flows are based on our best estimate of future net sales and operating expenses, based primarily on customer forecasts, industry trade organization data and general economic conditions.We conduct our annual impairment test as of October 1st of each year, and have determined there was no impairment as of October 1, 2018 as we determined that the estimated fair values of our reporting units exceeded their carrying values on that date. Other events and changes in circumstances may also require goodwill to be tested for impairment between annual measurement dates. As of September 28, 2019, we do not believe that circumstances have occurred that indicate impairment of our goodwill is more-likely-than-not. In the event we determine that an interim goodwill impairment review is required in a future period, the review may result in an impairment charge, which would have a negative impact on our results of operations.We evaluate our indefinite-lived intangible assets associated with in-process research and development by comparing the fair value of each project with its carrying value. This evaluation is completed annually and whenever indicators of impairment are present. Long-lived assets, other than goodwill, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets might not be recoverable. Conditions that would necessitate an impairment assessment include a significant decline in the observable market value of an asset, a significant change in the extent or manner in which an asset is used, or any other significant adverse change that would indicate that the carrying amount of an asset or group of assets may not be recoverable. For long-lived assets, impairment losses are only recorded if the asset’s carrying amount is not recoverable through its undiscounted, probability-weighted future cash flows. We measure the impairment loss based on the difference between the carrying amount and estimated fair value. |
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| Standard Product Warranty, Policy [Policy Text Block] | Product Warranty Product warranty costs are accrued in the period sales are recognized. Our products are generally sold with standard warranty periods, which differ by product, ranging from 12 - to 36 -months. Parts and labor are typically covered under the terms of the warranty agreement. Our warranty expense accruals are based on historical and estimated costs by product and configuration. From time-to-time we offer customers extended warranties beyond the standard warranty period. In those situations the revenue relating to the extended warranty is deferred at its estimated relative standalone selling price and recognized on a straight-line basis over the contract period. Costs associated with our extended warranty contracts are expensed as incurred. |
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| Costs Associated with Exit or Disposal Activities or Restructurings, Policy [Policy Text Block] | Restructuring Costs We record restructuring activities including costs for one -time termination benefits in accordance with ASC Topic 420 (“ASC 420” ), Exit or Disposal Cost Obligations. The timing of recognition for severance costs accounted for under ASC 420 depends on whether employees are required to render service until they are terminated in order to receive the termination benefits. If employees are required to render service until they are terminated in order to receive the termination benefits, a liability is recognized ratably over the future service period. Otherwise, a liability is recognized when management has committed to a restructuring plan and has communicated those actions to employees. Employee termination benefits covered by existing benefit arrangements are recorded in accordance with ASC Topic 712, Nonretirement Postemployment Benefits. These costs are recognized when management has committed to a restructuring plan and the severance costs are probable and estimable. |
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| Debt, Policy [Policy Text Block] | Debt Issuance Costs We capitalized costs related to the issuance of debt. Debt issuance costs directly related to our Term B Loan are presented within noncurrent liabilities as a reduction of long-term debt in our condensed consolidated balance sheets. The amortization of such costs is recognized as interest expense using the effective interest method over the term of the respective debt issue. Amortization related to deferred debt issuance costs and original discount costs was $0.3 million and $0.8 million for the three and nine months ended September 28, 2019. We obtained the Term B Loan on October 1, 2018, as a result there were no debt issuance costs amortized during the three and nine months ended September 29, 2018. |
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| Foreign Currency Transactions and Translations Policy [Policy Text Block] | Foreign Remeasurement and Currency Translation Assets and liabilities of our wholly owned foreign subsidiaries that use the U.S. Dollar as their functional currency are re-measured using exchange rates in effect at the end of the period, except for nonmonetary assets, such as inventories and property, plant and equipment, which are re-measured using historical exchange rates. Revenues and costs are re-measured using average exchange rates for the period, except for costs related to those balance sheet items that are re-measured using historical exchange rates. Gains and losses on foreign currency transactions are recognized as incurred. During the three and nine months ended September 28, 2019, we recognized foreign exchange gains of $1.6 million and $1.3 million, respectively, in our condensed consolidated statements of operations. During the three and nine months ended September 29, 2018, we recognized a foreign exchange loss of $0.2 million and a gain of $1.2 million, respectively, in our condensed consolidated statements of operations. Certain of our foreign subsidiaries have designated the local currency as their functional currency and, as a result, their assets and liabilities are translated at the rate of exchange at the balance sheet date, while revenue and expenses are translated using the average exchange rate for the period. Cumulative foreign currency translation adjustments resulting from the translation of the financial statements are included as a separate component of stockholders’ equity. |
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| Share-based Payment Arrangement [Policy Text Block] | Share-Based Compensation We measure and recognize all share-based compensation under the fair value method. Our estimate of share-based compensation expense requires a number of complex and subjective assumptions including our stock price volatility, employee exercise patterns (expected life of the options) and related tax effects. The assumptions used in calculating the fair value of share-based awards represent our best estimates, but these estimates involve inherent uncertainties and the application of management judgment. Although we believe the assumptions and estimates we have made are reasonable and appropriate, changes in assumptions could materially impact our reported financial results. Reported share-based compensation is classified, in our condensed consolidated financial statements, as follows (in thousands) :
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| Earnings Per Share, Policy [Policy Text Block] | Income (Loss) Per Share Basic income (loss) per common share is computed by dividing net income (loss) by the weighted-average number of common shares outstanding during the reporting period. Diluted income (loss) per share includes the dilutive effect of common shares potentially issuable upon the exercise of stock options, vesting of outstanding restricted stock and performance stock units and issuance of stock under our employee stock purchase plan using the treasury stock method. In loss periods, potentially dilutive securities are excluded from the per share computations due to their anti-dilutive effect. For purposes of computing diluted income (loss) per share, stock options with exercise prices that exceed the average fair market value of our common stock for the period are excluded. For the three and nine months ended September 28, 2019, stock options and awards to issue approximately 459,000 and 487,000 shares of common stock were excluded from the computation, respectively. For the three months ended September 29, 2018, no stock options or awards to issue shares of common stock were excluded from the computation. For the nine months ended September 29, 2018, stock options and awards to issue approximately 12,000 shares of common stock were excluded from the computation.The following table reconciles the denominators used in computing basic and diluted income (loss) per share ( in thousands) :
Cohu has utilized the “control number” concept in the computation of diluted earnings per share to determine whether potential common stock instruments are dilutive. The control number used is income from continuing operations. The control number concept requires that the same number of potentially dilutive securities applied in computing diluted earnings per share from continuing operations be applied to all other categories of income or loss, regardless of their anti-dilutive effect on such categories. |
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| Lessee, Leases [Policy Text Block] | Leases We adopted ASU , as of 2016 -02, Leases (Topic 842 ) December 30, 2018. We determine if a contract contains a lease at inception. Operating leases are included in operating lease right of use (“ROU”) assets, current other accrued liabilities, and long-term lease liabilities on our condensed consolidated balance sheets. Finance leases are included in property, plant and equipment, other current accrued liabilities, and long-term lease liabilities on our condensed consolidated balance sheets.Operating lease ROU assets and operating lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at the adoption date or the commencement date for leases entered into after the adoption date. As most of our leases do not provide an implicit rate, we use our incremental borrowing rates for the remaining lease terms based on the information available at the adoption date or commencement date in determining the present value of future payments.The operating lease ROU asset also includes any lease payments made, lease incentives, favorable and unfavorable lease terms recognized in business acquisitions and excludes initial direct costs incurred and variable lease payments. Variable lease payments include estimated payments that are subject to reconciliations throughout the lease term, increases or decreases in the contractual rent payments as a result of changes in indices or interest rates and tax payments that are based on prevailing rates. Our lease terms may include renewal options to extend the lease when it is reasonably certain that we will exercise those options. In addition, we include purchase option amounts in our calculations when it is reasonably certain that we will exercise those options. Rent expense for minimum payments under operating leases is recognized on a straight-line basis over the term.Leases with an initial term of 12 months or less are not recorded on the balance sheet, but recognized in our condensed consolidated statements of operations on a straight-line basis over the lease term. We account for lease and non-lease components as a single lease component and include both in our calculation of the ROU assets and lease liabilities.We sublease certain leased assets to third parties, mainly as a result of unused space in our facilities. None of our subleases contain extension options. Variable lease payments in our subleases include tax payments that are based on prevailing rates. We account for lease and non-lease components as a single lease component. |
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| Revenue [Policy Text Block] | Revenue Recognition Our net sales are derived from the sale of products and services and are adjusted for estimated returns and allowances, which historically have been insignificant. We recognize revenue when the obligations under the terms of a contract with our customers are satisfied; generally, this occurs with the transfer of control of our systems, non-system products or services. In circumstances where control is not transferred until destination or acceptance, we defer revenue recognition until such events occur.Revenue for established products that have previously satisfied a customer’s acceptance requirements is generally recognized upon shipment. In cases where a prior history of customer acceptance cannot be demonstrated or from sales where customer payment dates are not determinable and in the case of new products, revenue and cost of sales are deferred until customer acceptance has been received. Our post-shipment obligations typically include installation and standard warranties. The relative standalone selling price of installation related revenue is recognized in the period the installation is performed. Service revenue is recognized over time as we transfer control to our customer for the related contract or upon completion of the services if they are short-term in nature. Spares, contactor and kit revenue is generally recognized upon shipment.Certain of our equipment sales have multiple performance obligations. These arrangements involve the delivery or performance of multiple performance obligations, and transfer of control of performance obligations may occur at different points in time or over different periods of time. For arrangements containing multiple performance obligations, the revenue relating to the undelivered performance obligation is deferred using the relative standalone selling price method utilizing estimated sales prices until satisfaction of the deferred performance obligation.Unsatisfied performance obligations primarily represent contracts for products with future delivery dates. At September 28, 2019, we have $12.2 million of revenue expected to be recognized in the future related to performance obligations that are unsatisfied (or partially unsatisfied) for contracts with original expected durations of over one year. As allowed under ASC 606, we have opted to not disclose unsatisfied performance obligations for contracts with original expected durations of less than one year.We generally sell our equipment with a product warranty. The product warranty provides assurance to customers that delivered products are as specified in the contract (an “assurance-type warranty”). Therefore, we account for such product warranties under ASC 460, Guarantees (ASC 460 ), and not as a separate performance obligation.The transaction price reflects our expectations about the consideration we will be entitled to receive from the customer and may include fixed or variable amounts. Fixed consideration primarily includes sales to customers that are known as of the end of the reporting period. Variable consideration includes sales in which the amount of consideration that we will receive is unknown as of the end of a reporting period. Such consideration primarily includes sales made to certain customers with cumulative tier volume discounts offered. Variable consideration arrangements are rare; however, when they occur, we estimate variable consideration as the expected value to which we expect to be entitled. Included in the transaction price estimate are amounts in which it is probable that a significant reversal of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved. Variable consideration that does not meet revenue recognition criteria is deferred. Our contracts are typically less than one year in duration and we have elected to use the practical expedient available in ASC 606 to expense cost to obtain contracts as they are incurred because they would be amortized over less than one year.Accounts receivable represents our unconditional right to receive consideration from our customer. Payments terms do not exceed one year from the invoice date and therefore do not include a significant financing component. To date, there have been no material impairment losses on accounts receivable. There were no material contract assets or contract liabilities recorded on our condensed consolidated balance sheet in any of the periods presented.On shipments where sales are not recognized, gross profit is generally recorded as deferred profit in our condensed consolidated balance sheet representing the difference between the receivable recorded and the inventory shipped. At September 28, 2019, we had deferred revenue totaling approximately $16.2 million, current deferred profit of $8.0 million and deferred profit expected to be recognized after one year included in noncurrent other accrued liabilities of $5.8 million. At December 29, 2018, we had deferred revenue totaling approximately $10.8 million, current deferred profit of $6.9 million and deferred profit expected to be recognized after one year included in noncurrent other accrued liabilities of $2.0 million.Net sales of our reportable segments, by type, are as follows (in thousands):
Revenue by geographic area based upon product shipment destination ( in thousands ):
A small number of customers historically have been responsible for a significant portion of our net sales. Significant customer concentration information, by reportable segment, is as follows:
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| Comprehensive Income, Policy [Policy Text Block] | Accumulated Other Comprehensive Loss Our accumulated other comprehensive loss balance totaled approximately $40.3 million and $25.9 million at September 28, 2019 and December 29, 2018, respectively, and was attributed to all non-owner changes in stockholders’ equity and consists of, on an after-tax basis where applicable, foreign currency adjustments resulting from the translation of certain of our subsidiary accounts where the functional currency is not the U.S. Dollar and adjustments related to postretirement benefits. Reclassification adjustments from accumulated other comprehensive loss during the first nine months of fiscal 2019 and 2018 were not significant. |
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| Pension and Other Postretirement Plans, Policy [Policy Text Block] | Retiree Medical Benefits We provide post-retirement health benefits to certain retired executives, one director (who is a former executive) and their eligible dependents under a noncontributory plan. These benefits are no longer offered to any other retired Cohu employees. The net periodic benefit cost incurred during the first nine months of fiscal 2019 and 2018 was not significant. |
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| Discontinued Operations, Policy [Policy Text Block] | Discontinued Operations Management has determined that the fixtures services business, that was acquired as part of Xcerra, does not align with Cohu’s long-term strategic plan and management is in the process of divesting this portion of the business. As a result, the assets of our fixtures business are considered “held for sale” and the operations of our fixtures business are considered “discontinued operations” as of December 29, 2018. See Note 10, “Discontinued Operations” for additional information. Unless otherwise indicated, all amounts herein relate to continuing operations. |
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| New Accounting Pronouncements, Policy [Policy Text Block] | Recent Accounting Pronouncements Recently Adopted Accounting Pronouncements We adopted ASU , as of 2016 -02, Leases (Topic 842 ) December 30, 2018, using the optional transition method which allowed us to record existing leases at adoption and recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption rather than in the earliest period presented. We elected the package of practical expedients permitted under the transition guidance within the new standard, which among other things, allows us to carryforward the historical lease classification.We made an accounting policy election to not record ROU assets and lease liabilities for leases with an initial term of 12 months or less. We recognized those lease payments in our condensed consolidated statements of operations on a straight-line basis over the lease term. We also made an accounting policy election to use the practical expedient allowed in the standard to not separate lease and non-lease components when calculating the ROU asset and lease liability. Related to adoption of the new standard, we have implemented internal controls and a lease accounting technology system to track the ROU asset and lease liability balances and prepare the related footnote disclosures.Adoption of the new standard resulted in the recording of additional net lease assets and lease liabilities of approximately $30.7 million and $29.9 million, respectively, as of December 30, 2018. We had previously recorded a sale and operating leaseback transaction in accordance with Topic 840 and as a result of the adoption of the new standard, recognized $10.2 million of deferred gain as an adjustment to retained earnings. In addition, we had previously recognized assets and liabilities related to a build-to-suit designation under Topic 840 and as a result of the adoption of the new standard, derecognized assets and liabilities of $0.5 million and $0.6 million, respectively, with the difference recorded as an adjustment to retained earnings. The standard did not materially impact our consolidated net earnings and had no impact on cash flows.Recently Issued Accounting Pronouncements In June 2016, the FASB issued ASU 2016 -13, Financial Instruments-Credit Losses (Topic (“ASU 326 ): Measurement of Credit Losses on Financial Instruments2016 -13” ). In May 2019, ASU 2016 -13 was subsequently amended by ASU 2019 -04, Codification Improvements to Topic (“ASU 326, Financial Instruments-Credit Losses2019 -04” ) and ASU 2019 -05, Financial Instruments-Credit Losses (Topic (“ASU 326 ): Targeted Transition Relief2019 -05” ). ASU 2016 -13, as amended, affects trade receivables, financial assets and certain other instruments that are not measured at fair value through net income. This ASU will replace the currently required incurred loss approach with an expected loss model for instruments measured at amortized cost and is effective for financial statements issued for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. We do not expect the adoption of this guidance to have a material impact on our condensed consolidated financial statements.In August 2018, the FASB issued ASU 2018 -14, Disclosure Framework - Changes to the Disclosure Requirements for Defined Benefit Plans , which improves defined benefit disclosure requirements by removing disclosures that are not cost beneficial, clarifying disclosures’ specific requirements and adding relevant disclosure requirements. This ASU is effective for fiscal years ending after December 15, 2020 and early adoption is permitted. The amendments in this ASU are required to be applied on a retrospective basis to all periods presented. We are currently assessing and have not yet determined the impact that the adoption of ASU 2018 -14 will have on our condensed consolidated financial statements.In August 2018, the FASB issued ASU 2018 -13, Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement , which improves fair value disclosure requirements by removing disclosures that are not cost beneficial, clarifying disclosures’ specific requirements and adding relevant disclosure requirements. This ASU is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. The amendments on changes in unrealized gains and losses, the range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements, and the narrative description of measurement uncertainty should be applied prospectively for only the most recent interim or annual period presented in the initial fiscal year of adoption. All other amendments should be applied retrospectively to all periods presented upon their effective date. Early adoption is permitted and an entity can choose to early adopt any removed or modified disclosures upon issuance of this ASU and delay adoption of the additional disclosures until their effective date. We are currently assessing and have not yet determined the impact that the adoption of ASU 2018 -13 will have on our condensed consolidated financial statements. |
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Disclosure of accounting policy for basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS). No definition available.
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| X | ||||||||||
- Definition Disclosure of accounting policy for comprehensive income. No definition available.
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| X | ||||||||||
- Definition Disclosure of accounting policy for credit risk. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Disclosure of accounting policy for consolidation to describe the significant judgments and assumptions made in determining whether a variable interest held by the entity requires the variable interest entity to be consolidated and (or) disclose information about its involvement with the variable interest entity; the methodology used by the entity for determining whether or not it is the primary beneficiary of the variable interest entity; and the significant factors considered and judgments made in determining that the power to direct the activities that significantly impact the economic performance of the variable interest entity are shared (as defined). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Disclosure of accounting policy for recognizing and reporting costs associated with exiting, disposing of, and restructuring certain operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Disclosure of accounting policy related to debt. Includes, but is not limited to, debt issuance costs, the effects of refinancings, method of amortizing debt issuance costs and original issue discount, and classifications of debt. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Disclosure of accounting policy for discontinued operations. Includes, but is not limited to, method of interest allocation to a discontinued operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Disclosure of accounting policy for computing basic and diluted earnings or loss per share for each class of common stock and participating security. Addresses all significant policy factors, including any antidilutive items that have been excluded from the computation and takes into account stock dividends, splits and reverse splits that occur after the balance sheet date of the latest reporting period but before the issuance of the financial statements. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Disclosure of accounting policy for (1) transactions denominated in a currency other than the reporting enterprise's functional currency, (2) translating foreign currency financial statements that are incorporated into the financial statements of the reporting enterprise by consolidation, combination, or the equity method of accounting, and (3) remeasurement of the financial statements of a foreign reporting enterprise in a hyperinflationary economy. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Disclosure of accounting policy for goodwill and intangible assets. This accounting policy also may address how an entity assesses and measures impairment of goodwill and intangible assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Disclosure of inventory accounting policy for inventory classes, including, but not limited to, basis for determining inventory amounts, methods by which amounts are added and removed from inventory classes, loss recognition on impairment of inventories, and situations in which inventories are stated above cost. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Disclosure of accounting policy for leasing arrangement entered into by lessee. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact. No definition available.
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| X | ||||||||||
- Definition Disclosure of accounting policy for pension and other postretirement benefit plans. This accounting policy may address (1) the types of plans sponsored by the entity, and the benefits provided by each plan (2) groups that participate in (or are covered by) each plan (3) how plan assets, liabilities and expenses are measured, including the use of any actuaries and (4) significant assumptions used by the entity to value plan assets and liabilities and how such assumptions are derived. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Disclosure of accounting policy for reclassifications that affects the comparability of the financial statements. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Disclosure of accounting policy for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, basis of assets, depreciation and depletion methods used, including composite deprecation, estimated useful lives, capitalization policy, accounting treatment for costs incurred for repairs and maintenance, capitalized interest and the method it is calculated, disposals and impairments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Disclosure of accounting policy for revenue. Includes revenue from contract with customer and from other sources. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Disclosure of accounting policy for segment reporting. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Disclosure of accounting policy for award under share-based payment arrangement. Includes, but is not limited to, methodology and assumption used in measuring cost. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Disclosure of accounting policy for standard warranties including the methodology for measuring the liability. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Note 1 - Summary of Significant Accounting Policies (Tables) |
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| Notes Tables | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Reclassification of Amounts on Income Statement [Table Text Block] |
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| Schedule of Inventory, Current [Table Text Block] |
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| Property, Plant and Equipment [Table Text Block] |
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| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] |
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| Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
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| Disaggregation of Revenue [Table Text Block] |
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| Schedules of Concentration of Risk, by Risk Factor [Table Text Block] |
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| X | ||||||||||
- Definition Tabular disclosure of reclassification of amount on the Income Statement No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of the nature of a concentration, a benchmark to which it is compared, and the percentage that the risk is to the benchmark. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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Note 2 - Business Acquisitions, Goodwill and Purchased Intangible Assets (Tables) |
9 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Sep. 28, 2019 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block] |
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| Schedule of Goodwill [Table Text Block] |
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| Notes Tables | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] |
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| X | ||||||||||
- Definition Tabular disclosure of finite-lived intangible assets acquired as part of a business combination or through an asset purchase, by major class and in total, including the value of the asset acquired, any significant residual value (the expected value of the asset at the end of its useful life) and the weighted-average amortization period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of the amounts recognized as of the acquisition date for each major class of assets acquired and liabilities assumed. May include but not limited to the following: (a) acquired receivables; (b) contingencies recognized at the acquisition date; and (c) the fair value of noncontrolling interests in the acquiree. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Details
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Note 3 - Borrowings and Credit Agreements (Tables) |
9 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Sep. 28, 2019 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Debt [Table Text Block] |
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| X | ||||||||||
- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. No definition available.
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| X | ||||||||||
- References No definition available.
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Note 4 - Restructuring Charges (Tables) |
9 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Sep. 28, 2019 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Restructuring and Related Costs [Table Text Block] |
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| X | ||||||||||
- Definition Tabular disclosure of costs incurred for restructuring including, but not limited to, exit and disposal activities, remediation, implementation, integration, asset impairment, and charges against earnings from the write-down of assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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Note 5 - Financial Instruments Measured at Fair Value (Tables) |
9 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Notes Tables | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Available-for-sale Securities [Table Text Block] |
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| Investments Classified by Contractual Maturity Date [Table Text Block] |
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| Fair Value, Assets Measured on Recurring Basis [Table Text Block] |
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| X | ||||||||||
- Definition Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities. No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. No definition available.
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| X | ||||||||||
- References No definition available.
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Note 8 - Segment and Geographic Information (Tables) |
9 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Notes Tables | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Segment Reporting Information, by Segment [Table Text Block] |
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| X | ||||||||||
- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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Note 9 - Leases (Tables) |
9 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Notes Tables | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Leases, Balance Sheet Information [Table Text Block] |
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| Lease, Cost [Table Text Block] |
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| Lessee, Lease, Liability, Maturity [Table Text Block] |
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| Lease, Cash Flow Information [Table Text Block] |
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| X | ||||||||||
- Definition Tabular disclosure of the cash flow information for leases. No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of balance sheet information for leases. No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of undiscounted cash flows of lessee's operating and finance lease liability. No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- References No definition available.
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Note 10 - Discontinued Operations (Tables) |
9 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Xcerra [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Disposal Groups, Including Discontinued Operations [Table Text Block] |
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| X | ||||||||||
- Definition Tabular disclosure of information related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Details
|
Note 12 - Guarantees (Tables) |
9 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Sep. 28, 2019 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Product Warranty Liability [Table Text Block] |
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| X | ||||||||||
- Definition Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
|
Note 1 - Summary of Significant Accounting Policies (Details Textual) $ in Thousands |
3 Months Ended | 9 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 30, 2018
USD ($)
|
Oct. 01, 2018
USD ($)
|
Sep. 28, 2019
USD ($)
shares
|
Sep. 29, 2018
USD ($)
shares
|
Sep. 28, 2019
USD ($)
shares
|
Sep. 29, 2018
USD ($)
shares
|
Dec. 29, 2018
USD ($)
|
||||
| Number of VIEs Consolidated | 1 | 1 | ||||||||
| Accounts Receivable, Allowance for Credit Loss, Current | $ 200 | $ 200 | $ 300 | |||||||
| Number of Operating Segments | 4 | |||||||||
| Number of Reportable Segments | 2 | |||||||||
| Goodwill and Intangible Asset Impairment, Total | $ 0 | |||||||||
| Amortization of Debt Issuance Costs and Discounts, Total | 300 | $ 0 | $ 826 | $ 0 | ||||||
| Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax | $ 1,600 | $ (200) | $ 1,300 | $ 1,200 | ||||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount | shares | 459,000 | 0 | 487,000 | 12,000 | ||||||
| Revenue, Remaining Performance Obligation, Amount | $ 12,200 | $ 12,200 | ||||||||
| Accounts Receivable, Credit Loss Expense (Reversal) | 0 | |||||||||
| Contract with Customer, Liability, Total | 0 | 0 | ||||||||
| Contract with Customer, Liability, Current | 16,200 | 16,200 | 10,800 | |||||||
| Deferred Profit | 7,952 | 7,952 | 6,896 | |||||||
| Accumulated Other Comprehensive Income (Loss), Net of Tax, Total | (40,260) | (40,260) | (25,880) | |||||||
| Assets, Total | 1,071,609 | 1,071,609 | 1,134,002 | [1] | ||||||
| Accounting Standards Update 2016-02 [Member] | ||||||||||
| Lease Assets | $ 30,700 | |||||||||
| Lease Liabilities | 29,900 | |||||||||
| Cumulative Effect on Retained Earnings, Net of Tax, Total | 10,200 | |||||||||
| Assets, Total | (500) | |||||||||
| Liabilities, Total | $ (600) | |||||||||
| Non-current Other Accrued Liabilities [Member] | ||||||||||
| Deferred Profit Recognized After Year One | $ 5,800 | $ 5,800 | $ 2,000 | |||||||
| Minimum [Member] | ||||||||||
| Standard Product Warranty Term | 1 year | |||||||||
| Maximum [Member] | ||||||||||
| Standard Product Warranty Term | 3 years | |||||||||
| Building [Member] | Minimum [Member] | ||||||||||
| Property, Plant and Equipment, Useful Life | 30 years | |||||||||
| Building [Member] | Maximum [Member] | ||||||||||
| Property, Plant and Equipment, Useful Life | 40 years | |||||||||
| Building Improvements [Member] | Minimum [Member] | ||||||||||
| Property, Plant and Equipment, Useful Life | 5 years | |||||||||
| Building Improvements [Member] | Maximum [Member] | ||||||||||
| Property, Plant and Equipment, Useful Life | 15 years | |||||||||
| Machinery, Equipment and Software [Member] | Minimum [Member] | ||||||||||
| Property, Plant and Equipment, Useful Life | 3 years | |||||||||
| Machinery, Equipment and Software [Member] | Maximum [Member] | ||||||||||
| Property, Plant and Equipment, Useful Life | 10 years | |||||||||
| ALBS [Member] | ||||||||||
| Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners | 80.00% | 80.00% | ||||||||
| Variable Interest Entity, Consolidated, Assets, Pledged, Total | $ 0 | $ 0 | ||||||||
| ||||||||||
| X | ||||||||||
- Definition The carrying value of deferred revenue, net of expenses, as of the balance sheet date that is expected to be recognized as such within one year or the normal operating cycle, if longer. No definition available.
|
| X | ||||||||||
- Definition The carrying value of deferred revenue, net of expenses, as of the balance sheet date which is expected to be taken into income after one year or beyond the normal operating cycle, if longer. No definition available.
|
| X | ||||||||||
- Definition The value of all lease assets. No definition available.
|
| X | ||||||||||
- Definition The amount of all lease liabilities. No definition available.
|
| X | ||||||||||
- Definition Represents the number of variable interest entities consolidated as of the balance sheet date. No definition available.
|
| X | ||||||||||
- Definition Describes the term of the product warranty. No definition available.
|
| X | ||||||||||
- Definition Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of allowance for credit loss on accounts receivable, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of amortization expense attributable to debt discount (premium) and debt issuance costs. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of the cumulative effect on retained earnings net of related income tax effect. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill. No definition available.
|
| X | ||||||||||
- Definition Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity. No definition available.
|
| X | ||||||||||
- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. No definition available.
|
| X | ||||||||||
- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. No definition available.
|
| X | ||||||||||
- Definition Amount after tax, before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. No definition available.
|
| X | ||||||||||
- Definition Amount of expense (reversal of expense) for expected credit loss on accounts receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of transaction price allocated to performance obligation that has not been recognized as revenue. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of consolidated variable interest entity's (VIE) assets that can only be used to settle obligations of VIE. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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Note 1 - Summary of Significant Accounting Policies - Reclassification (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||||
|---|---|---|---|---|---|---|
Sep. 28, 2019 |
Sep. 29, 2018 |
Sep. 28, 2019 |
Sep. 29, 2018 |
|||
| Cost of sales | [1] | $ 84,565 | $ 51,142 | $ 265,564 | $ 163,742 | |
| SG&A expense | $ 33,690 | 15,899 | $ 108,404 | 50,988 | ||
| Previously Reported [Member] | ||||||
| Cost of sales | 51,786 | 165,701 | ||||
| SG&A expense | 16,511 | 50,926 | ||||
| Restatement Adjustment [Member] | Amortization of Purchased Intangibles [Member] | ||||||
| Cost of sales | (644) | (1,959) | ||||
| SG&A expense | (380) | (1,158) | ||||
| Restatement Adjustment [Member] | Foreign Transaction Gains and (Losses) [Member] | ||||||
| Cost of sales | ||||||
| SG&A expense | $ (232) | $ 1,220 | ||||
| ||||||
| X | ||||||||||
- Definition The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 1 - Summary of Significant Accounting Policies - Inventories (Details) - USD ($) $ in Thousands |
Sep. 28, 2019 |
Dec. 29, 2018 |
|||
|---|---|---|---|---|---|
| Raw materials and purchased parts | $ 70,677 | $ 60,112 | |||
| Work in process | 44,997 | 57,953 | |||
| Finished goods | 18,249 | 21,249 | |||
| Total inventories | $ 133,923 | $ 139,314 | [1] | ||
| |||||
| X | ||||||||||
- Definition Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Aggregated amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed. This amount is net of valuation reserves and adjustments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
Note 1 - Summary of Significant Accounting Policies - Property, Plant and Equipment (Details) - USD ($) $ in Thousands |
Sep. 28, 2019 |
Dec. 29, 2018 |
|||
|---|---|---|---|---|---|
| Property, plant and equipment | $ 115,554 | $ 113,961 | |||
| Less accumulated depreciation and amortization | (45,115) | (39,629) | |||
| Property, plant and equipment, net | 70,439 | 74,332 | [1] | ||
| Land and Land Improvements [Member] | |||||
| Property, plant and equipment | 11,916 | 11,905 | |||
| Building and Building Improvements [Member] | |||||
| Property, plant and equipment | 40,187 | 37,265 | |||
| Machinery and Equipment [Member] | |||||
| Property, plant and equipment | $ 63,451 | $ 64,791 | |||
| |||||
| X | ||||||||||
- Definition Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 1 - Summary of Significant Accounting Policies - Reported Share-based Compensation (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 28, 2019 |
Sep. 29, 2018 |
Sep. 28, 2019 |
Sep. 29, 2018 |
|
| Allocated share-based compensation | $ 3,506 | $ 1,880 | $ 10,861 | $ 5,497 |
| Income tax benefit | (67) | (115) | (426) | (555) |
| Total share-based compensation, net | 3,439 | 1,765 | 10,435 | 4,942 |
| Cost of Sales [Member] | ||||
| Allocated share-based compensation | 212 | 125 | 545 | 408 |
| Research and Development Expense [Member] | ||||
| Allocated share-based compensation | 820 | 354 | 2,234 | 1,098 |
| Selling, General and Administrative Expenses [Member] | ||||
| Allocated share-based compensation | $ 2,474 | $ 1,401 | $ 8,082 | $ 3,991 |
| X | ||||||||||
- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount, after tax, of expense for award under share-based payment arrangement. No definition available.
|
| X | ||||||||||
- Definition Amount of tax benefit for recognition of expense of award under share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 1 - Summary of Significant Accounting Policies - Computation of Basic and Diluted Income (Loss) Per Share (Details) - shares shares in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 28, 2019 |
Sep. 29, 2018 |
Sep. 28, 2019 |
Sep. 29, 2018 |
|
| Weighted average common shares (in shares) | 41,229 | 28,948 | 41,075 | 28,814 |
| Effect of dilutive securities (in shares) | 822 | 836 | ||
| (in shares) | 41,229 | 29,770 | 41,075 | 29,650 |
| X | ||||||||||
- Definition The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
Note 1 - Summary of Significant Accounting Policies - Disaggregation of Revenue (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | |||||
|---|---|---|---|---|---|---|---|
Sep. 28, 2019 |
Sep. 29, 2018 |
Sep. 28, 2019 |
Sep. 29, 2018 |
||||
| Net sales | [1] | $ 143,498 | $ 86,164 | $ 441,318 | $ 281,131 | ||
| Semiconductor Test and Inspection [Member] | |||||||
| Net sales | 132,820 | 86,164 | 407,092 | 281,131 | |||
| PCB Test [Member] | |||||||
| Net sales | 10,678 | 34,226 | |||||
| Systems [Member] | Semiconductor Test and Inspection [Member] | |||||||
| Net sales | [1] | 70,654 | 42,278 | 226,749 | 152,846 | ||
| Systems [Member] | PCB Test [Member] | |||||||
| Net sales | [1] | 6,853 | 22,232 | ||||
| Non-systems [Member] | Semiconductor Test and Inspection [Member] | |||||||
| Net sales | [1] | 62,166 | 43,886 | 180,343 | 128,285 | ||
| Non-systems [Member] | PCB Test [Member] | |||||||
| Net sales | [1] | 3,825 | 11,994 | ||||
| CHINA | |||||||
| Net sales | 31,076 | 23,628 | 87,365 | 63,011 | |||
| UNITED STATES | |||||||
| Net sales | 21,918 | 11,585 | 58,427 | 41,725 | |||
| TAIWAN, PROVINCE OF CHINA | |||||||
| Net sales | 20,341 | 5,916 | 52,513 | 11,762 | |||
| Malaysia [Member] | |||||||
| Net sales | 12,991 | 13,682 | 47,698 | 38,539 | |||
| PHILIPPINES | |||||||
| Net sales | 12,330 | 11,158 | 38,266 | 31,620 | |||
| Rest of the World [Member] | |||||||
| Net sales | $ 44,842 | $ 20,195 | $ 157,049 | $ 94,474 | |||
| |||||||
| X | ||||||||||
- Definition Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 1 - Summary of Significant Accounting Policies - Customer Concentration (Details) - Revenue Benchmark [Member] - Customer Concentration Risk [Member] |
3 Months Ended | 9 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Sep. 28, 2019 |
[2] | Sep. 29, 2018 |
Sep. 28, 2019 |
Sep. 29, 2018 |
|||||||
| Semiconductor Test and Inspection [Member] | |||||||||||
| Customers individually accounting for more than 10% of net sales | [1] | 1 | 1 | 1 | |||||||
| Semiconductor Test and Inspection [Member] | One Customer [Member] | |||||||||||
| Percentage of net sales | [1] | 11.20% | 11.00% | 10.80% | |||||||
| PCB Test [Member] | |||||||||||
| Customers individually accounting for more than 10% of net sales | [1] | [2] | |||||||||
| Percentage of net sales | [1] | [2] | |||||||||
| |||||||||||
| X | ||||||||||
- Definition Represents the number of major customers accounting for 10% or more of the specified concentration risk benchmark, which includes, but not limited to, sales revenue, accounts receivable, etc. No definition available.
|
| X | ||||||||||
- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 2 - Business Acquisitions, Goodwill and Purchased Intangible Assets (Details Textual) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 9 Months Ended | ||||
|---|---|---|---|---|---|---|
Oct. 01, 2018 |
Sep. 28, 2019 |
Sep. 29, 2018 |
Sep. 28, 2019 |
Sep. 29, 2018 |
Dec. 29, 2018 |
|
| Share Price | $ 25.10 | |||||
| Transfer From In-Process Technology to Developed Technology | $ 13,200 | |||||
| Amortization of Intangible Assets, Total | $ 9,969 | $ 1,024 | 29,975 | $ 3,117 | ||
| Secured Term Loan Facility [Member] | ||||||
| Debt Instrument, Face Amount | $ 350,000 | |||||
| Debt Instrument, Amortization, Percentage of Principal Amount | 0.25% | |||||
| Secured Term Loan Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | ||||||
| Debt Instrument, Basis Spread on Variable Rate | 3.00% | |||||
| Xcerra [Member] | ||||||
| Business Combination, Consideration Transferred, Total | $ 794,400 | |||||
| Payments to Acquire Businesses, Gross | 160,500 | |||||
| Business Combination, Acquisition Related Costs | 400 | $ 5,200 | ||||
| Xcerra [Member] | In-process Technology [Member] | ||||||
| Indefinite-lived Intangible Assets (Excluding Goodwill), Ending Balance | $ 22,900 | $ 22,900 | $ 36,300 | |||
| Xcerra [Member] | Fair Value Adjustment to Inventory [Member] | ||||||
| Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value | $ 19,600 | |||||
| Xcerra [Member] | Common Stock [Member] | ||||||
| Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | 11,776,149 | |||||
| Xcerra [Member] | Cohu RSUs [Member] | ||||||
| Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | 529,995 | |||||
| Business Acquisition, Equity Interest Issued or Issuable, Value Assigned, Attributed to Pre-Merger Services | $ 800 | |||||
| X | ||||||||||
- Definition Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity, attributable to pre-Merger services. No definition available.
|
| X | ||||||||||
- Definition Percentage of quarterly installments of the original principal, with balance payable at maturity. No definition available.
|
| X | ||||||||||
- Definition The value of technology transferred to "Developed Technology" which was previously classified as "In-Process Technology" in the period. No definition available.
|
| X | ||||||||||
- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Number of shares of equity interests issued or issuable to acquire entity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Fair value at acquisition-date of the equity interest in the acquiree held by the acquirer, immediately before the acquisition date for businesses combined in stages. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. No definition available.
|
| X | ||||||||||
- Definition Face (par) amount of debt instrument at time of issuance. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Price of a single share of a number of saleable stocks of a company. No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 2 - Business Acquisitions, Goodwill and Purchased Intangible Assets - Purchase Price Allocation, Xcerra Acquisition (Details) - USD ($) $ in Thousands |
9 Months Ended | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Sep. 28, 2019 |
Dec. 29, 2018 |
[1] | Oct. 01, 2018 |
Dec. 30, 2017 |
||||||||||
| Goodwill | $ 235,903 | $ 242,127 | $ 65,613 | |||||||||||
| Goodwill, adjustment | [2],[3] | 1,134 | ||||||||||||
| Xcerra [Member] | ||||||||||||||
| Current assets, including cash received | 375,990 | $ 375,990 | ||||||||||||
| Property, plant and equipment | 40,729 | 40,729 | ||||||||||||
| Other assets | 1,051 | 2,109 | ||||||||||||
| Other assets, adjustment | [4] | (1,058) | ||||||||||||
| Intangible assets | 321,160 | 321,160 | ||||||||||||
| Goodwill | 180,397 | 179,263 | ||||||||||||
| Goodwill, adjustment | [4] | 1,134 | ||||||||||||
| Total assets acquired | 919,327 | 919,251 | ||||||||||||
| Liabilities assumed | (124,897) | (124,821) | ||||||||||||
| Liabilities assumed, adjustment | [4] | (76) | ||||||||||||
| Net assets acquired | $ 794,430 | $ 794,430 | ||||||||||||
| ||||||||||||||
| X | ||||||||||
- Definition This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to other assets acquired in connection with a business combination for which the initial accounting was incomplete. No definition available.
|
| X | ||||||||||
- Definition This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to financial liabilities assumed in connection with a business combination for which the initial accounting was incomplete. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of assets acquired at the acquisition date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The amount of identifiable intangible assets recognized as of the acquisition date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of liabilities assumed at the acquisition date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The amount of property, plant, and equipment recognized as of the acquisition date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
Note 2 - Business Acquisitions, Goodwill and Purchased Intangible Assets - Preliminary Allocation of Intangible Assets, Xcerra Acquisition (Details) - USD ($) $ in Thousands |
9 Months Ended | |||||
|---|---|---|---|---|---|---|
Oct. 01, 2018 |
Sep. 28, 2019 |
Dec. 29, 2018 |
||||
| Intangible assets, estimated fair value | $ 321,160 | |||||
| Gross carrying amount | $ 324,163 | $ 317,857 | ||||
| Accumulated amortization | $ 64,544 | 35,203 | ||||
| Remaining weighted average amortization period (Year) | ||||||
| In-process Technology [Member] | ||||||
| Finite-lived intangible assets, estimated fair value | 36,360 | |||||
| Developed Technology Rights [Member] | ||||||
| Finite-lived intangible assets, estimated fair value | $ 194,600 | |||||
| Finite-lived intangible assets, average useful life (Year) | 7 years 292 days | |||||
| Gross carrying amount | $ 223,454 | 214,266 | ||||
| Accumulated amortization | $ 42,021 | 21,197 | ||||
| Remaining weighted average amortization period (Year) | 6 years 292 days | |||||
| Customer Relationships [Member] | ||||||
| Finite-lived intangible assets, estimated fair value | $ 65,890 | |||||
| Finite-lived intangible assets, average useful life (Year) | 10 years 219 days | |||||
| Gross carrying amount | $ 71,720 | 73,104 | ||||
| Accumulated amortization | $ 12,815 | 7,378 | ||||
| Remaining weighted average amortization period (Year) | 9 years 182 days | |||||
| Order or Production Backlog [Member] | ||||||
| Finite-lived intangible assets, estimated fair value | $ 6,410 | |||||
| Finite-lived intangible assets, average useful life (Year) | 292 days | |||||
| Gross carrying amount | $ 6,279 | 6,372 | ||||
| Accumulated amortization | $ 6,279 | 4,696 | ||||
| Remaining weighted average amortization period (Year) | 0 years | |||||
| Trade Names [Member] | ||||||
| Finite-lived intangible assets, estimated fair value | $ 16,800 | |||||
| Finite-lived intangible assets, average useful life (Year) | 11 years | |||||
| Gross carrying amount | $ 22,384 | 22,701 | ||||
| Accumulated amortization | $ 3,339 | 1,807 | ||||
| Remaining weighted average amortization period (Year) | 9 years 292 days | |||||
| Off-Market Favorable Lease [Member] | ||||||
| Finite-lived intangible assets, estimated fair value | $ 1,100 | |||||
| Finite-lived intangible assets, average useful life (Year) | 5 years 182 days | |||||
| Gross carrying amount | [1] | 1,100 | ||||
| Accumulated amortization | [1] | 62 | ||||
| Remaining weighted average amortization period (Year) | [1] | 4 years 219 days | ||||
| Noncompete Agreements [Member] | ||||||
| Gross carrying amount | $ 326 | 314 | ||||
| Accumulated amortization | $ 90 | $ 63 | ||||
| Remaining weighted average amortization period (Year) | 7 years 109 days | |||||
| ||||||
| X | ||||||||||
- Definition Amount of increase in assets, excluding financial assets and goodwill, lacking physical substance with a finite or indefinite life, from an acquisition. No definition available.
|
| X | ||||||||||
- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Remaining amortization period of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
|
| X | ||||||||||
- Definition Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of increase in assets, excluding financial assets and goodwill, lacking physical substance with an indefinite life, from an acquisition. No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 2 - Business Acquisitions, Goodwill and Purchased Intangible Assets - Acquired Goodwill Activity (Details) - USD ($) $ in Thousands |
9 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Sep. 28, 2019 |
Dec. 29, 2018 |
||||||||||
| Balance | $ 242,127 | [1] | $ 65,613 | ||||||||
| Additions, net | 179,263 | ||||||||||
| Impact of currency exchange | (7,358) | (2,749) | |||||||||
| Adjustments | [2],[3] | 1,134 | |||||||||
| Balance | 235,903 | 242,127 | [1] | ||||||||
| Semiconductor Test and Inspection [Member] | |||||||||||
| Balance | [2] | 220,808 | 65,613 | ||||||||
| Additions, net | [2] | 157,661 | |||||||||
| Impact of currency exchange | [2] | (6,603) | (2,466) | ||||||||
| Adjustments | [2],[3] | 2,117 | |||||||||
| Balance | [2] | 216,322 | 220,808 | ||||||||
| PCB Test [Member] | |||||||||||
| Balance | 21,319 | ||||||||||
| Additions, net | 21,602 | ||||||||||
| Impact of currency exchange | (755) | (283) | |||||||||
| Adjustments | [2],[3] | (983) | |||||||||
| Balance | $ 19,581 | $ 21,319 | |||||||||
| |||||||||||
| X | ||||||||||
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 3 - Borrowings and Credit Agreements (Details Textual) $ in Thousands, € in Millions, SFr in Millions |
9 Months Ended | ||||
|---|---|---|---|---|---|
|
Jul. 26, 2019
EUR (€)
|
Oct. 01, 2018
USD ($)
|
Sep. 28, 2019
USD ($)
|
Sep. 28, 2019
CHF (SFr)
|
Dec. 29, 2018
USD ($)
|
|
| Long-term Debt, Current Maturities, Total | $ 6,382 | $ 6,676 | |||
| Long-term Line of Credit, Total | 3,241 | 3,115 | |||
| Ismeca [Member] | |||||
| Line of Credit Facility, Maximum Borrowing Capacity | SFr | SFr 2 | ||||
| Long-term Line of Credit, Total | $ 0 | $ 0 | |||
| Number of Available Lines of Credit | 1 | 1 | |||
| Revolving Credit Facility [Member] | |||||
| Line of Credit Facility, Maximum Borrowing Capacity | $ 8,900 | ||||
| Long-term Line of Credit, Total | 3,300 | ||||
| Secured Term Loan Facility [Member] | |||||
| Debt Instrument, Face Amount | $ 350,000 | ||||
| Debt Instrument, Amortization, Percentage of Principal Amount | 0.25% | ||||
| Long-term Debt, Total | 338,800 | ||||
| Long-term Debt, Current Maturities, Total | 2,400 | ||||
| Long-term Debt, Fair Value | 332,200 | ||||
| Secured Term Loan Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | |||||
| Debt Instrument, Basis Spread on Variable Rate | 3.00% | ||||
| Kita Term Loans [Member] | |||||
| Long-term Debt, Total | 4,000 | ||||
| Long-term Debt, Current Maturities, Total | $ 500 | ||||
| Kita Term Loans [Member] | Minimum [Member] | |||||
| Debt Instrument, Interest Rate, Stated Percentage | 0.05% | 0.05% | |||
| Kita Term Loans [Member] | Maximum [Member] | |||||
| Debt Instrument, Interest Rate, Stated Percentage | 0.44% | 0.44% | |||
| Xcerra Term Loan [Member] | |||||
| Long-term Debt, Total | $ 1,500 | ||||
| Long-term Debt, Current Maturities, Total | $ 300 | ||||
| Debt Instrument, Interest Rate, Stated Percentage | 2.35% | 2.35% | |||
| Debt Instrument, Term | 10 years | ||||
| Rasco Term Loan [Member] | |||||
| Debt Instrument, Face Amount | € | € 3.4 | ||||
| Long-term Debt, Total | $ 3,700 | ||||
| Long-term Debt, Current Maturities, Total | $ 0 | ||||
| Debt Instrument, Interest Rate, Stated Percentage | 0.80% | ||||
| Debt Instrument, Term | 10 years |
| X | ||||||||||
- Definition Percentage of quarterly installments of the original principal, with balance payable at maturity. No definition available.
|
| X | ||||||||||
- Definition Represents the number of available lines of credit as of the balance sheet date. No definition available.
|
| X | ||||||||||
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. No definition available.
|
| X | ||||||||||
- Definition Face (par) amount of debt instrument at time of issuance. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
|
| X | ||||||||||
- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 3 - Borrowings and Credit Agreements - Summary of Borrowings (Details) - USD ($) $ in Thousands |
Sep. 28, 2019 |
Dec. 29, 2018 |
|---|---|---|
| Lines of Credit | $ 3,241 | $ 3,115 |
| Total debt | 359,027 | 358,655 |
| Less: financing fees and discount | (7,725) | (8,551) |
| Less: current portion | (6,382) | (6,676) |
| Total long-term debt | 344,920 | 343,428 |
| Secured Term Loan Facility [Member] | ||
| Term loan | 346,500 | 349,125 |
| Less: current portion | (2,400) | |
| Kita Term Loans [Member] | ||
| Term loan | 4,042 | 4,576 |
| Less: current portion | (500) | |
| Xcerra [Member] | ||
| Term loan | 1,524 | 1,839 |
| Rasco Term Loan [Member] | ||
| Term loan | 3,720 | |
| Less: current portion | $ 0 |
| X | ||||||||||
- Definition Represents the aggregate of total long-term debt, including current maturities and short-term debt, before financing fees and discount. No definition available.
|
| X | ||||||||||
- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of unamortized debt discount (premium) and debt issuance costs. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 4 - Restructuring Charges (Details Textual) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 28, 2019 |
Sep. 29, 2018 |
Sep. 28, 2019 |
Sep. 29, 2018 |
|
| Restructuring Charges, Total | $ 814 | $ 10,720 | ||
| X | ||||||||||
- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
Note 4 - Restructuring Charges - Charges Related to the Wind Down Plan (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 28, 2019 |
Sep. 29, 2018 |
Sep. 28, 2019 |
Sep. 29, 2018 |
|
| Restructuring Charges, Total | $ 814 | $ 10,720 | ||
| Integration Program [Member] | ||||
| Accrued restructuring, beginning balance | 4,026 | |||
| Restructuring Charges, Total | 10,720 | |||
| Amounts paid or charged | (9,804) | |||
| Impact of currency exchange | (137) | |||
| Accrued restructuring, ending balance | 4,805 | 4,805 | ||
| Employee Severance [Member] | Integration Program [Member] | ||||
| Accrued restructuring, beginning balance | 4,026 | |||
| Restructuring Charges, Total | 10,167 | |||
| Amounts paid or charged | (9,251) | |||
| Impact of currency exchange | (137) | |||
| Accrued restructuring, ending balance | 4,805 | 4,805 | ||
| Other Restructuring [Member] | Integration Program [Member] | ||||
| Accrued restructuring, beginning balance | ||||
| Restructuring Charges, Total | 553 | |||
| Amounts paid or charged | (553) | |||
| Impact of currency exchange | ||||
| Accrued restructuring, ending balance | ||||
| X | ||||||||||
- Definition Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of increase (decrease) in the restructuring reserve related to foreign currency translation (gain) loss and other increases (decreases). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 5 - Financial Instruments Measured at Fair Value (Details Textual) - USD ($) $ in Thousands |
Sep. 28, 2019 |
Dec. 29, 2018 |
|---|---|---|
| Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total | $ 0 | $ 0 |
| X | ||||||||||
- Definition This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position which are categorized neither as held-to-maturity nor trading securities. No definition available.
|
Note 5 - Financial Instruments Measured at Fair Value - Short-term Investments by Security Type (Details) - USD ($) $ in Thousands |
Sep. 28, 2019 |
Dec. 29, 2018 |
|||||
|---|---|---|---|---|---|---|---|
| Short-term investments | $ 573 | $ 560 | [1] | ||||
| Debt Security, Government, Non-US [Member] | |||||||
| Amortized Cost | 573 | 560 | |||||
| Gross Unrealized Gains | |||||||
| Gross Unrealized Losses | [2] | ||||||
| Short-term investments | $ 573 | $ 560 | |||||
| |||||||
| X | ||||||||||
- Definition Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale. No definition available.
|
| X | ||||||||||
- Definition This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. No definition available.
|
| X | ||||||||||
- Definition Amount of investment in debt and equity securities categorized neither as trading securities nor held-to-maturity securities and intended be sold or mature one year or operating cycle, if longer. No definition available.
|
| X | ||||||||||
- Details
|
Note 5 - Financial Instruments Measured at Fair Value - Effective Maturities of Short-term Investments (Details) - USD ($) $ in Thousands |
Sep. 28, 2019 |
Dec. 29, 2018 |
|---|---|---|
| Due after one year through three years, amortized cost | $ 573 | $ 560 |
| Due after one year through three years, fair value | $ 573 | $ 560 |
| X | ||||||||||
- Definition The estimated fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through third fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date. No definition available.
|
| X | ||||||||||
- Definition Amount after adjustments of available-for-sale debt securities at cost, maturing in the second fiscal year through the third fiscal year following the latest fiscal year. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings less cumulative-effect adjustments, and fair value hedge accounting adjustments. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. No definition available.
|
Note 5 - Financial Instruments Measured at Fair Value - Assets Measured at Fair Value on Recurring Basis (Details) - Fair Value, Recurring [Member] - USD ($) $ in Thousands |
Sep. 28, 2019 |
Dec. 29, 2018 |
|---|---|---|
| $ 145,667 | $ 165,020 | |
| Debt Security, Government, Non-US [Member] | ||
| Short-term investments | 573 | 560 |
| Cash [Member] | ||
| Cash and cash equivalents | 132,065 | 144,696 |
| Money Market Funds [Member] | ||
| Cash and cash equivalents | 13,029 | 19,764 |
| Fair Value, Inputs, Level 1 [Member] | ||
| 132,065 | 144,696 | |
| Fair Value, Inputs, Level 1 [Member] | Debt Security, Government, Non-US [Member] | ||
| Short-term investments | ||
| Fair Value, Inputs, Level 1 [Member] | Cash [Member] | ||
| Cash and cash equivalents | 132,065 | 144,696 |
| Fair Value, Inputs, Level 1 [Member] | Money Market Funds [Member] | ||
| Cash and cash equivalents | ||
| Fair Value, Inputs, Level 2 [Member] | ||
| 13,602 | 20,324 | |
| Fair Value, Inputs, Level 2 [Member] | Debt Security, Government, Non-US [Member] | ||
| Short-term investments | 573 | 560 |
| Fair Value, Inputs, Level 2 [Member] | Cash [Member] | ||
| Cash and cash equivalents | ||
| Fair Value, Inputs, Level 2 [Member] | Money Market Funds [Member] | ||
| Cash and cash equivalents | 13,029 | 19,764 |
| Fair Value, Inputs, Level 3 [Member] | ||
| Fair Value, Inputs, Level 3 [Member] | Debt Security, Government, Non-US [Member] | ||
| Short-term investments | ||
| Fair Value, Inputs, Level 3 [Member] | Cash [Member] | ||
| Cash and cash equivalents | ||
| Fair Value, Inputs, Level 3 [Member] | Money Market Funds [Member] | ||
| Cash and cash equivalents |
| X | ||||||||||
- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. No definition available.
|
| X | ||||||||||
- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 6 - Employee Stock Benefit Plans (Details Textual) $ / shares in Units, $ in Millions |
9 Months Ended |
|---|---|
|
Sep. 28, 2019
USD ($)
$ / shares
shares
| |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | 0 |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period | 36,650 |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance | 368,276 |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price, Ending Balance | $ / shares | $ 10.34 |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value | $ | $ 1.2 |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term | 3 years |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number | 368,276 |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price | $ / shares | $ 10.34 |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value | $ | $ 1.2 |
| Restricted Stock Units (RSUs) [Member] | |
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | 670,737 |
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period | 560,795 |
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance | 1,331,427 |
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Outstanding | $ | $ 17.8 |
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Remaining Contractual Terms | 1 year 146 days |
| Restricted Stock Units (RSUs) [Member] | Vesting Over One Year Period [Member] | |
| Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 1 year |
| Restricted Stock Units (RSUs) [Member] | Vesting Over Four Year Period [Member] | |
| Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 4 years |
| Performance Shares [Member] | |
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | 167,226 |
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period | 35,696 |
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance | 364,194 |
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Outstanding | $ | $ 4.9 |
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Remaining Contractual Terms | 1 year 219 days |
| Equity Based Performance Stock Units Granted in 2018, 2017, and 2016 [Member] | Vest on the Third Anniversary of Awards Grant [Member] | |
| Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage | 100.00% |
| Minimum [Member] | Performance Shares [Member] | |
| Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Shares Available for Issue | 25.00% |
| Maximum [Member] | Performance Shares [Member] | |
| Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Shares Available for Issue | 200.00% |
| Equity Incentive Plan 2005 [Member] | |
| Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant | 2,507,028 |
| Equity Incentive Plan 2005 [Member] | Share-based Payment Arrangement, Option [Member] | |
| Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period | 10 years |
| Equity Incentive Plan 2005 [Member] | Minimum [Member] | Share-based Payment Arrangement, Option [Member] | |
| Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 1 year |
| Equity Incentive Plan 2005 [Member] | Maximum [Member] | Share-based Payment Arrangement, Option [Member] | |
| Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 4 years |
| Employee Stock Purchase Plan [Member] | |
| Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant | 1,034,612 |
| Stock Issued During Period, Shares, New Issues | 63,998 |
| X | ||||||||||
- Definition Represents share based compensation arrangement by share based payment award percentage of shares available for issue. No definition available.
|
| X | ||||||||||
- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Gross number of share options (or share units) granted during the period. No definition available.
|
| X | ||||||||||
- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Percentage of vesting of award under share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Intrinsic value of outstanding award under share-based payment arrangement. Excludes share and unit options. No definition available.
|
| X | ||||||||||
- Definition Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Number of new stock issued during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Number of share options (or share units) exercised during the current period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 7 - Income Taxes (Details Textual) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 28, 2019 |
Sep. 29, 2018 |
Sep. 28, 2019 |
Sep. 29, 2018 |
|
| Effective Income Tax Rate Reconciliation, Percent, Total | (13.90%) | 32.40% | (0.30%) | 21.90% |
| Unrecognized Tax Benefits, Period Increase (Decrease), Total | $ 0 | $ 0 | $ 0 | $ 0 |
| X | ||||||||||
- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of increase (decrease) in unrecognized tax benefits attributable to uncertain tax positions taken in tax returns. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
Note 8 - Segment and Geographic Information - Summary of Current Segments (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Sep. 28, 2019 |
Sep. 29, 2018 |
Sep. 28, 2019 |
Sep. 29, 2018 |
Dec. 29, 2018 |
||||||
| Net sales | [1] | $ 143,498 | $ 86,164 | $ 441,318 | $ 281,131 | |||||
| Profit (loss) for reportable segments | (2,317) | 9,941 | (30,002) | 41,073 | ||||||
| Interest expense | (5,000) | (11) | (15,789) | (33) | ||||||
| Interest income | 190 | 337 | 603 | 913 | ||||||
| Income (loss) from continuing operations before taxes | (9,203) | 7,105 | (52,553) | 31,470 | ||||||
| Total assets for reportable segments | 1,071,609 | 1,071,609 | $ 1,134,002 | [2] | ||||||
| Total assets | 3,863 | 3,863 | 3,820 | |||||||
| Corporate, Non-Segment [Member] | ||||||||||
| Corporate expenses | (2,076) | (3,162) | (7,365) | (10,483) | ||||||
| Total assets for reportable segments | 15,759 | 15,759 | 34,367 | |||||||
| Semiconductor Test and Inspection [Member] | ||||||||||
| Net sales | 132,820 | 86,164 | 407,092 | 281,131 | ||||||
| Profit (loss) for reportable segments | (2,929) | 9,941 | (32,373) | 41,073 | ||||||
| Total assets for reportable segments | 994,248 | 994,248 | 1,038,053 | |||||||
| PCB Test [Member] | ||||||||||
| Net sales | 10,678 | 34,226 | ||||||||
| Profit (loss) for reportable segments | 612 | 2,371 | ||||||||
| Total assets for reportable segments | 57,739 | 57,739 | 57,762 | |||||||
| Semiconductor Test and Inspection and PCB Test [Member] | ||||||||||
| Total assets for reportable segments | $ 1,051,987 | $ 1,051,987 | $ 1,095,815 | |||||||
| ||||||||||
| X | ||||||||||
- Definition The amount of profit (loss) from operating segments. No definition available.
|
| X | ||||||||||
- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount classified as assets attributable to disposal group held for sale or disposed of. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of the cost of borrowed funds accounted for as interest expense. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount before accretion (amortization) of purchase discount (premium) of interest income and dividend income on nonoperating securities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 9 - Leases (Details Textual) $ in Millions |
9 Months Ended |
|---|---|
|
Sep. 28, 2019
USD ($)
| |
| Lessee, Operating Lease, Renewal Term | 25 years |
| Finance Lease Right-of-use Asset, Accumulated Amortization | $ 0.1 |
| Operating Lease, Impairment Loss | 0.2 |
| Lessee, Sublease Income, Receivable, Remainder of Fiscal Year | 0.1 |
| Lessee, Sublease Income, Receivable, Year Two | $ 0.1 |
| Minimum [Member] | |
| Lessee, Lease, Remaining Term of Contract | 1 year |
| Maximum [Member] | |
| Lessee, Lease, Remaining Term of Contract | 38 years |
| X | ||||||||||
- Definition The amount of accumulated amortization of finance lease right-of-use asset. No definition available.
|
| X | ||||||||||
- Definition Remaining term of lessee's operating and finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. No definition available.
|
| X | ||||||||||
- Definition Amount of sublease income receivable for the remainder of the fiscal year. No definition available.
|
| X | ||||||||||
- Definition Amount of sublease income receivable for the second fiscal year following the latest year. No definition available.
|
| X | ||||||||||
- Definition Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of loss from impairment of right-of-use asset from operating lease. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 9 - Leases - Balance Sheet Information (Details) - USD ($) $ in Thousands |
Sep. 28, 2019 |
Dec. 29, 2018 |
[1] | ||||
|---|---|---|---|---|---|---|---|
| Operating lease assets | $ 34,096 | ||||||
| Finance lease assets | [2] | 2,482 | |||||
| Total lease assets | 36,578 | ||||||
| Operating | 29,397 | ||||||
| Total lease liabilities | $ 37,283 | ||||||
| Operating leases (Year) | 7 years 328 days | ||||||
| Finance leases (Year) | 292 days | ||||||
| Operating leases | 6.30% | ||||||
| Finance leases | 4.50% | ||||||
| Other Accrued Liabilities [Member] | |||||||
| Operating | $ 5,358 | ||||||
| Finance | $ 2,528 | ||||||
| |||||||
| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from finance and operating lease. No definition available.
|
| X | ||||||||||
- Definition Amount of lessee's right to use underlying asset under finance and operating lease. No definition available.
|
| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from finance lease, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of lessee's right to use underlying asset under finance lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Weighted average discount rate for finance lease calculated at point in time. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Weighted average remaining lease term for finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of lessee's right to use underlying asset under operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Weighted average discount rate for operating lease calculated at point in time. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Details
|
Note 9 - Leases - Lease Expense (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 28, 2019 |
Sep. 28, 2019 |
|||
| Operating leases (1) | [1] | $ 2,142 | $ 6,381 | |
| Variable lease expense | 570 | 1,765 | ||
| Short-term operating leases | 80 | 224 | ||
| Amortization of leased assets | 20 | 82 | ||
| Interest on lease liabilities | 29 | 117 | ||
| Sublease income | (31) | (101) | ||
| Net lease cost | $ 2,810 | $ 8,468 | ||
| ||||
| X | ||||||||||
- Definition Amount of interest expense on finance lease liability. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of amortization expense attributable to right-of-use asset from finance lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of lease cost recognized by lessee for lease contract. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of short-term lease cost, excluding expense for lease with term of one month or less. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of sublease income excluding finance and operating lease expense. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
Note 9 - Leases - Future Minimum Lease Payments (Details) $ in Thousands |
Sep. 28, 2019
USD ($)
|
|||
|---|---|---|---|---|
| 2019, operating leases | $ 1,709 | [1] | ||
| 2019, finance leases | 37 | |||
| 2019, total | 1,746 | |||
| 2020, operating leases | 7,133 | [1] | ||
| 2020, finance leases | 2,576 | |||
| 2020, total | 9,709 | |||
| 2021, operating leases | 5,816 | [1] | ||
| 2021, finance leases | ||||
| 2021, total | 5,816 | |||
| 2022, operating leases | 5,369 | [1] | ||
| 2022, finance leases | ||||
| 2022, total | 5,369 | |||
| 2023, operating leases | 4,940 | [1] | ||
| 2023, finance leases | ||||
| 2023, total | 4,940 | |||
| Thereafter, operating leases | 21,007 | [1] | ||
| Thereafter, finance leases | ||||
| Thereafter, total | 21,007 | |||
| Total lease payments, operating leases | 45,974 | [1] | ||
| Total lease payments, finance leases | 2,613 | |||
| Total lease payments, total | 48,587 | |||
| Less: Interest, operating leases | (11,219) | [1] | ||
| Less: Interest, finance leases | (85) | |||
| Less: Interest, total | (11,304) | |||
| Present value of lease liabilities, operating leases | 34,755 | [1] | ||
| Present value of lease liabilities, finance leases | 2,528 | |||
| Present value of lease liabilities, total | $ 37,283 | |||
| ||||
| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from finance and operating lease. No definition available.
|
| X | ||||||||||
- Definition Amount of lessee's undiscounted obligation for lease payments for operating and finance lease. No definition available.
|
| X | ||||||||||
- Definition Amount of lessee's undiscounted obligation for lease payments for operating and finance lease, due after fifth fiscal year following latest fiscal year. No definition available.
|
| X | ||||||||||
- Definition Amount of lessee's undiscounted obligation for lease payments for operating and finance lease, due in fifth fiscal year following latest fiscal year. No definition available.
|
| X | ||||||||||
- Definition Amount of lessee's undiscounted obligation for lease payments for operating and finance lease, due in fourth fiscal year following latest fiscal year. No definition available.
|
| X | ||||||||||
- Definition Amount of lessee's undiscounted obligation for lease payments for operating and finance lease, due in third fiscal year following latest fiscal year. No definition available.
|
| X | ||||||||||
- Definition Amount of lessee's undiscounted obligation for lease payments for operating and finance lease, due in second fiscal year following latest fiscal year. No definition available.
|
| X | ||||||||||
- Definition Amount of lessee's undiscounted obligation for lease payments for operating and finance lease having an initial or remaining lease term in excess of one year due in remainder of fiscal year following latest fiscal year. No definition available.
|
| X | ||||||||||
- Definition Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating and finance lease. No definition available.
|
| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from finance lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of lessee's undiscounted obligation for lease payments for finance lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of lessee's undiscounted obligation for lease payments for finance lease, due after fifth fiscal year following latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of lessee's undiscounted obligation for lease payments for finance lease, due in fifth fiscal year following latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of lessee's undiscounted obligation for lease payments for finance lease, due in fourth fiscal year following latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of lessee's undiscounted obligation for lease payments for finance lease, due in third fiscal year following latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of lessee's undiscounted obligation for lease payments for finance lease, due in second fiscal year following latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of lessee's undiscounted obligation for lease payments for finance lease, due in remainder of fiscal year following latest fiscal year ended. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for finance lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease, due after fifth fiscal year following latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease, due in fifth fiscal year following latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease, due in fourth fiscal year following latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease, due in third fiscal year following latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease, due in second fiscal year following latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease having an initial or remaining lease term in excess of one year due in remainder of fiscal year following latest fiscal year. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
Note 9 - Leases - Cash Flow Information (Details) $ in Thousands |
9 Months Ended |
|---|---|
|
Sep. 28, 2019
USD ($)
| |
| Operating cash flows from operating leases | $ 5,153 |
| Operating cash flows from finance leases | 109 |
| Financing cash flows from finance leases | 25 |
| Leased assets obtained in exchange for new operating lease liabilities | $ 39,815 |
| X | ||||||||||
- Definition Amount of interest paid on finance lease liability. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of cash outflow for principal payment on finance lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of increase in right-of-use asset obtained in exchange for operating lease liability. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
Note 10 - Discontinued Operations - Balance Sheet Information and Operating Results for Fixture Services Business (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|
Sep. 28, 2019 |
Sep. 29, 2018 |
Sep. 28, 2019 |
Sep. 29, 2018 |
Dec. 29, 2018 |
||||
| Assets: | ||||||||
| Total current assets | $ 3,733 | $ 3,733 | $ 3,741 | [1] | ||||
| Total assets | 3,863 | 3,863 | 3,820 | |||||
| Liabilities: | ||||||||
| Total current liabilities | 564 | 564 | 518 | [1] | ||||
| Noncurrent liabilities | 34 | 34 | [1] | |||||
| Income, net of tax | 154 | 342 | ||||||
| Xcerra [Member] | ||||||||
| Liabilities: | ||||||||
| Net sales | 1,720 | 5,020 | ||||||
| Operating income before income taxes | 173 | 400 | ||||||
| Income tax provision | 19 | 58 | ||||||
| Income, net of tax | 154 | 342 | ||||||
| Xcerra [Member] | Discontinued Operations, Held-for-sale [Member] | ||||||||
| Assets: | ||||||||
| Cash and cash equivalents | 1,176 | 1,176 | 461 | |||||
| Accounts receivable, net | 1,466 | 1,466 | 1,718 | |||||
| Inventories | 1,074 | 1,074 | 1,388 | |||||
| Other current assets | 17 | 17 | 174 | |||||
| Total current assets | 3,733 | 3,733 | 3,741 | |||||
| Property, plant and equipment, net | 40 | 40 | 66 | |||||
| Other noncurrent assets | 90 | 90 | 13 | |||||
| Total assets | 3,863 | 3,863 | 3,820 | |||||
| Liabilities: | ||||||||
| Other accrued current liabilities | 564 | 564 | 518 | |||||
| Total current liabilities | 564 | 564 | 518 | |||||
| Noncurrent liabilities | 34 | 34 | ||||||
| Total liabilities | $ 598 | $ 598 | $ 518 | |||||
| ||||||||
| X | ||||||||||
- Definition Amount classified as assets attributable to disposal group held for sale or disposed of. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount classified as accounts, notes and loans receivable attributable to disposal group held for sale or disposed of. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount classified as accrued liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount classified as cash and cash equivalents attributable to disposal group held for sale or disposed of. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount classified as inventory attributable to disposal group, expected to be disposed of within one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of operating income (loss) attributable to disposal group, including, but not limited to, discontinued operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount classified as other assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount classified as other assets attributable to disposal group held for sale or disposed of, expected to be disposed of after one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount classified as property, plant and equipment attributable to disposal group held for sale or disposed of, expected to be disposed of after one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of revenue attributable to disposal group, including, but not limited to, discontinued operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after tax of income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount classified as liabilities attributable to disposal group held for sale or disposed of. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount classified as liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount classified as liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of beyond one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 12 - Guarantees (Details Textual) - USD ($) $ in Millions |
9 Months Ended | |
|---|---|---|
Sep. 28, 2019 |
Dec. 29, 2018 |
|
| Non-current Other Accrued Liabilities [Member] | ||
| Product Warranty Accrual, Noncurrent | $ 0.2 | $ 0.2 |
| Minimum [Member] | ||
| Standard Product Warranty Term | 1 year | |
| Maximum [Member] | ||
| Standard Product Warranty Term | 3 years |
| X | ||||||||||
- Definition Describes the term of the product warranty. No definition available.
|
| X | ||||||||||
- Definition Carrying value as of the balance sheet date of obligations incurred through that date and due after one year (or beyond the operating cycle if longer) for estimated claims under standard and extended warranty protection rights granted to customers. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 12 - Guarantees - Changes in Accrued Warranty (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 28, 2019 |
Sep. 29, 2018 |
Sep. 28, 2019 |
Sep. 29, 2018 |
|
| Balance at beginning of period | $ 6,852 | $ 4,948 | $ 8,014 | $ 4,848 |
| Warranty expense accruals | 1,137 | 1,600 | 4,695 | 4,988 |
| Warranty payments | (2,071) | (1,946) | (6,791) | (5,234) |
| Balance at end of period | $ 5,918 | $ 4,602 | $ 5,918 | $ 4,602 |
| X | ||||||||||
- Definition Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of decrease in the standard and extended product warranty accrual from payments made in cash or in kind to satisfy claims under the terms of the standard and extended product warranty. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of increase in the standard and extended product warranty accrual from warranties issued. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|