Equity Earnings (Loss) of Joint Ventures (Details Textual) - USD ($)	12 Months Ended
Jun. 27, 2021	Jun. 28, 2020
Schedule Of Equity Method Investments [Line Items]
Equity earnings (loss) of joint ventures	$ 2,560,000	$ (209,000)
VAST LLC \| STRATTEC
Schedule Of Equity Method Investments [Line Items]
STRATTEC's percentage ownership in joint venture	33.33%
Equity earnings (loss) of joint ventures	$ 2,600,000	$ (565,000)
SAL LLC
Schedule Of Equity Method Investments [Line Items]
STRATTEC's percentage ownership in joint venture		51.00%
Equity earnings (loss) of joint ventures		$ 356,000

Amount of income (loss) for proportionate share of equity method investee's income (loss).

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