v2.4.0.6
Document and Entity Information
3 Months Ended
Mar. 31, 2012
Document and Entity Information [Abstract]  
Entity Registrant Name COHU INC
Entity Central Index Key 0000021535
Document Type 10-Q
Document Period End Date Mar. 31, 2012
Amendment Flag false
Document Fiscal Year Focus 2012
Document Fiscal Period Focus Q1
Current Fiscal Year End Date --12-29
Entity Filer Category Accelerated Filer
Entity Common Stock, Shares Outstanding 24,363,492