Investment in Joint Ventures And Majority Owned Subsidiaries (Details) - STRATTEC Advanced Logic, LLC (formerly known as NextLock LLC) $ in Thousands	12 Months Ended
Jun. 28, 2015 USD ($)
Schedule Of Equity Method Investments [Line Items]
Loss on Guarantee for license agreement of STRATEC Advanced Logic, LLC, proportionate share of partner	$ 123
Loss on Loan from STRATTEC to STRATTEC Advanced Logic	100
Loss on Guarantee of STRATEC Advanced Logic, LLC Credit facility	$ 488

STRATTEC's loss on our joint venture partner's proportionate share, based on its joint venture ownership percentage, of the current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees.

No definition available.

Name:	strt_LossFromEquityMethodInvestmentOnProportionatePartnerShareLoanGuaranteeWithThirdParty
Namespace Prefix:	strt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration