Document and Entity Information - shares	9 Months Ended
	Apr. 01, 2017	Apr. 28, 2017
Document Documentand Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Apr. 01, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q3
Trading Symbol	ktcc
Entity Registrant Name	KEY TRONIC CORP
Entity Central Index Key	0000719733
Current Fiscal Year End Date	--07-01
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		10,759,680