Equity Earnings (Loss) of Joint Ventures - Summarized Statements of Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 27, 2021	Jun. 28, 2020
Summarized statements of operations
Net sales	$ 485,295	$ 385,300
Cost of goods sold	406,637	349,854
GROSS PROFIT	78,658	35,446
Engineering, selling and administrative expense	44,743	44,108
INCOME (LOSS) FROM OPERATIONS	33,915	(8,662)
Other income, net	(1,165)	1,668
INCOME (LOSS) BEFORE BENEFIT FOR INCOME TAXES AND NON- CONTROLLING INTEREST	35,008	(8,123)
Provision for income taxes	5,111	(2,266)
NET INCOME (LOSS)	29,897	(5,857)
STRATTEC’s equity earnings (loss) of VAST LLC	2,560	(209)
VAST LLC | Equity Method Investment Summarized Financial Information
Summarized statements of operations
Net sales	210,149	153,006
Cost of goods sold	171,930	125,012
GROSS PROFIT	38,219	27,994
Engineering, selling and administrative expense	30,605	28,812
Impairment charge		2,000
INCOME (LOSS) FROM OPERATIONS	7,614	(2,818)
Other income, net	1,681	1,556
INCOME (LOSS) BEFORE BENEFIT FOR INCOME TAXES AND NON- CONTROLLING INTEREST	9,295	(1,262)
Provision for income taxes	1,554	466
NET INCOME (LOSS)	7,741	(1,728)
STRATTEC's Share of VAST LLC Net (Loss) Income	2,580	(576)
Intercompany profit eliminations	(20)	11
STRATTEC’s equity earnings (loss) of VAST LLC	$ 2,560	$ (565)