Equity Earnings (Loss) of Joint Ventures - Summarized Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2024	Apr. 02, 2023	Mar. 31, 2024	Apr. 02, 2023
Summarized statements of operations
Net sales	$ 140,773	$ 127,183	$ 394,711	$ 360,727
Cost of goods sold	126,089	117,182	347,810	330,843
Gross profit	14,684	10,001	46,901	29,884
Engineering, selling and administrative expenses	12,725	12,485	38,778	37,266
Income (loss) from operations	1,959	(2,484)	8,123	(7,382)
Other income, net	(208)	(1,223)	1,028	(1,464)
Income (loss) before provision for income taxes and non-controlling interest	1,672	(3,154)	8,558	(7,503)
Provision (benefit) for income taxes	546	133	2,197	(1,638)
Net income (loss)	$ 1,126	(3,287)	6,361	(5,865)
VAST LLC | Equity Method Investment Summarized Financial Information
Summarized statements of operations
Net sales		44,989		168,088
Cost of goods sold		36,471		138,222
Gross profit		8,518		29,866
Engineering, selling and administrative expenses		6,872		24,631
Income (loss) from operations		1,646		5,235
Other income, net		1,167		1,625
Income (loss) before provision for income taxes and non-controlling interest		2,813		6,860
Provision (benefit) for income taxes		360		1,110
Net income (loss)		2,453		5,750
STRATTEC's share of VAST LLC net income		818		1,917
Intercompany profit elimination		1		17
STRATTEC's equity earnings of VAST LLC prior to impact of sale of VAST LLC		819		1,934
Loss on sale of VAST LLC			(269)
STRATTEC's equity earnings (loss) of VAST LLC		$ 819	$ (269)	$ 1,934