XML 20 R1.htm IDEA: XBRL DOCUMENT v3.5.0.2
Document And Entity Information - shares
 6 Months Ended
Jul. 01, 2016
Jul. 29, 2016
Document Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Jul. 01, 2016  
Document Fiscal Year Focus 2016  
Document Fiscal Period Focus Q2  
Entity Registrant Name STAAR SURGICAL CO  
Entity Central Index Key 0000718937  
Current Fiscal Year End Date --12-30  
Entity Filer Category Accelerated Filer  
Trading Symbol STAA  
Entity Common Stock, Shares Outstanding   40,431,411