v3.7.0.1
Document and Entity Information - USD ($)
12 Months Ended
Jul. 02, 2017
Aug. 04, 2017
Dec. 30, 2016
Document And Entity Information [Abstract]      
Entity Registrant Name STRATTEC SECURITY CORP    
Entity Central Index Key 0000933034    
Document Type 10-K    
Document Period End Date Jul. 02, 2017    
Amendment Flag false    
Document Fiscal Year Focus 2017    
Document Fiscal Period Focus FY    
Trading Symbol STRT    
Current Fiscal Year End Date --07-02    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Public Float     $ 142,424,000
Entity Filer Category Accelerated Filer    
Entity Common Stock Shares Outstanding   3,672,704