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Document And Entity Information
 6 Months Ended
Dec. 31, 2011
Jan. 28, 2012
Document And Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Dec. 31, 2011  
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2012  
Entity Registrant Name KEY TRONIC CORP  
Trading Symbol ktcc  
Entity Central Index Key 0000719733  
Current Fiscal Year End Date --06-30  
Entity Filer Category Smaller Reporting Company  
Entity Common Stock, Shares Outstanding   10,446,687