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Investment in Joint Ventures and Majority Owned Subsidiaries (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Mar. 27, 2022	Mar. 28, 2021	Mar. 27, 2022	Mar. 28, 2021
Schedule Of Equity Method Investments [Line Items]
Equity earnings (loss) of joint ventures	$ 577,000	$ (56,000)	$ 941,000	$ 1,844,000
Payments to acquire interest in joint venture			75,000	100,000
VAST LLC \| BRAZIL
Schedule Of Equity Method Investments [Line Items]
Payments to acquire interest in joint venture			$ 225,000	$ 300,000
VAST LLC \| MINDA-VAST ACCESS SYSTEMS
Schedule Of Equity Method Investments [Line Items]
Percentage ownership interest in equity method investment	50.00%		50.00%
STRATTEC \| ADAC-STRATTEC LLC
Schedule Of Equity Method Investments [Line Items]
Percentage ownership interest in less than wholly owned consolidated subsidiary	51.00%	51.00%	51.00%	51.00%
Majority owned subsidiary, impact on net income			$ 98,000	$ 3,400,000
Majority owned subsidiary, impact on net sales			$ 81,200,000	$ 98,700,000
STRATTEC \| Strattec Power Access Llc
Schedule Of Equity Method Investments [Line Items]
Percentage ownership interest in less than wholly owned consolidated subsidiary	80.00%	80.00%	80.00%	80.00%
Majority owned subsidiary, impact on net income			$ 3,800,000	$ 4,700,000
Majority owned subsidiary, impact on net sales			$ 68,300,000	72,000,000.0
STRATTEC \| VAST LLC
Schedule Of Equity Method Investments [Line Items]
Percentage ownership interest in equity method investment	33.33%		33.33%
Equity earnings (loss) of joint ventures			$ 941,000	1,800,000
Payments to acquire interest in joint venture			$ 75,000	$ 100,000
ADAC \| ADAC-STRATTEC LLC
Schedule Of Equity Method Investments [Line Items]
Percentage ownership interest in less than wholly owned consolidated subsidiary	49.00%	49.00%	49.00%	49.00%
Engineering, research, design and sales fee	$ 2,100,000	$ 2,100,000	$ 5,700,000	$ 6,900,000
Sales	$ 2,900,000	$ 2,700,000	$ 6,000,000.0	$ 9,100,000
ADAC \| VAST LLC
Schedule Of Equity Method Investments [Line Items]
Percentage ownership interest in equity method investment	33.30%		33.30%
WITTE \| Strattec Power Access Llc
Schedule Of Equity Method Investments [Line Items]
Percentage ownership interest in less than wholly owned consolidated subsidiary	20.00%	20.00%	20.00%	20.00%
WITTE \| VAST LLC
Schedule Of Equity Method Investments [Line Items]
Percentage ownership interest in equity method investment	33.30%		33.30%
WITTE \| STRATTEC
Schedule Of Equity Method Investments [Line Items]
Purchases	$ 200,000	$ 286,000	$ 615,000	$ 606,000