Cover Page - USD ($) $ in Millions	12 Months Ended
	Jul. 02, 2022	Sep. 09, 2022	Jan. 01, 2022
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Jul. 02, 2022
Document Transition Report	false
Entity File Number	0-11559
Entity Registrant Name	KEY TRONIC CORP
Entity Incorporation, State or Country Code	WA
Entity Tax Identification Number	91-0849125
Entity Address, Address Line One	4424 North Sullivan Road
Entity Address, City or Town	Spokane Valley,
Entity Address, State or Province	WA
Entity Address, Postal Zip Code	99216
City Area Code	509
Local Phone Number	928-8000
Title of 12(b) Security	Common stock, no par value
Trading Symbol	KTCC
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 63.7
Entity Common Stock, Shares Outstanding		10,761,871
Documents Incorporated by Reference	Certain information is incorporated into Part III of this report by reference to the Proxy Statement for the registrant’s 2022 annual meeting of stockholders to be filed with the Securities and Exchange Commission pursuant to Regulation 14A not later than 120 days after the end of the fiscal year covered by this Annual Report on Form 10-K.
Amendment Flag	false
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--06-27
Entity Central Index Key	0000719733
Auditor Name	Moss Adams LLP
Auditor Location	Seattle, Washington
Auditor Firm ID	659