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Investment in Joint Ventures and Majority Owned Subsidiaries (Details Textual) - USD ($)	1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended	18 Months Ended
	Jul. 31, 2023	Dec. 31, 2023	Jan. 01, 2023	Dec. 31, 2023	Jan. 01, 2023	Jul. 02, 2023	Dec. 31, 2023	Jun. 29, 2023
Schedule Of Equity Method Investments [Line Items]
Equity (loss) earnings of joint ventures		$ (4,000)	$ 588,000	$ (269,000)	$ 1,115,000
Payments to acquire interest in joint venture					104,000
VAST LLC
Schedule Of Equity Method Investments [Line Items]
Equity (loss) earnings of joint ventures						$ 110,000
Total loss on disposal of investment in VAST LLC							$ 159,000
VAST LLC \| BRAZIL
Schedule Of Equity Method Investments [Line Items]
Payments to acquire interest in joint venture					$ 312,000
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%		51.00%
Majority owned subsidiary, impact on net income				$ 234,000	$ (950,000)
Majority owned subsidiary, impact on net sales				62,900,000	$ 58,500,000
STRATTEC \| Strattec Power Access Llc
Schedule Of Equity Method Investments [Line Items]
Percentage ownership interest purchased in less than wholly owned subsidiary			20.00%		20.00%
Percentage ownership interest in less than wholly owned consolidated subsidiary			80.00%		80.00%
STRATTEC \| VAST LLC
Schedule Of Equity Method Investments [Line Items]
Percentage ownership interest in equity method investment			33.33%		33.33%			33.33%
Equity (loss) earnings of joint ventures				$ (269,000)	$ 1,100,000
Additional purchase price received under the VAST LLC restructuring agreement	$ 2,000,000
Payments to acquire interest in joint venture					$ 104,000
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%		49.00%
Engineering, research, design and sales fee		$ 2,111,000	$ 1,990,000	$ 4,405,000	$ 4,098,000
ADAC \| ADAC-STRATTEC LLC \| Related Party
Schedule Of Equity Method Investments [Line Items]
Revenue from related parties		$ 2,021,000	$ 2,528,000	$ 4,855,000	$ 5,320,000
ADAC \| VAST LLC
Schedule Of Equity Method Investments [Line Items]
Percentage ownership interest in equity method investment			33.33%		33.33%
WITTE \| Strattec Power Access Llc
Schedule Of Equity Method Investments [Line Items]
Purchases			$ 142,000		$ 277,000
Percentage ownership interest in less than wholly owned consolidated subsidiary			20.00%		20.00%
WITTE \| VAST LLC
Schedule Of Equity Method Investments [Line Items]
Percentage ownership interest in equity method investment			33.33%		33.33%
WITTE \| STRATTEC \| VAST LLC
Schedule Of Equity Method Investments [Line Items]
Percentage ownership interest in less than wholly owned consolidated subsidiary			20.00%		20.00%