Equity Earnings of Joint Ventures (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Dec. 28, 2014	Dec. 29, 2013	Dec. 28, 2014	Dec. 29, 2013
Summarized statements of operations
Equity earnings (loss) of joint ventures	$ (121)	$ 297	$ 69	$ 591
VAST LLC
Summarized statements of operations
Net Sales	35,663	27,135	66,661	51,664
Cost of Goods Sold	30,469	22,943	56,552	43,358
Gross Profit	5,194	4,192	10,109	8,306
Engineering, Selling and Administrative Expenses	4,590	2,791	8,788	6,281
Income (Loss) From Operations	604	1,401	1,321	2,025
Other Income (Expense), net	183	(19)	656	(21)
Income before Provision for Income taxes	787	1,382	1,977	2,004
Provision for (Benefit from) Income Taxes	376	219	435	(235)
Net Income (Loss)	411	1,163	1,542	2,239
STRATTEC’s Share of VAST LLC Net Income	137	387	514	746
Intercompany Profit Elimination	5	2	4	(4)
Equity earnings (loss) of joint ventures	142	389	518	742
NextLock LLC
Summarized statements of operations
Engineering, Selling and Administrative Expenses	516	181	880	297
Income (Loss) From Operations	(516)	(181)	(880)	(297)
Net Income (Loss)	(516)	(181)	(880)	(297)
Equity earnings (loss) of joint ventures	$ (263)	$ (92)	$ (449)	$ (151)

The amount of profit (loss) reported by an equity method investment of the entity before tax.

No definition available.

Name:	strt_EquityMethodInvestmentSummarizedFinancialInformationIncomeLossBeforeTaxProvision
Namespace Prefix:	strt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of operating income (loss) reported by an equity method investment of the entity.

+ References

No definition available.

+ Details

Name:	strt_EquityMethodInvestmentSummarizedFinancialInformationIncomeLossFromOperations
Namespace Prefix:	strt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of net non-operating income (expense) reported by an equity method investment of the entity.

+ References

No definition available.

+ Details

Name:	strt_EquityMethodInvestmentSummarizedFinancialInformationNonoperatingIncomeExpense
Namespace Prefix:	strt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of operating expenses reported by an equity method investment of the entity.

+ References

No definition available.

+ Details

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

- Definition

The amount of income tax expense (benefit) reported by an equity method investment of the entity.

+ References

No definition available.

+ Details

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

- Definition

This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied before the impact of intercompany transaction eliminations.

+ References

No definition available.

+ Details

Name:	strt_IncomeLossFromEquityMethodInvestmentBeforeIntercompanyProfitEliminations
Namespace Prefix:	strt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

This item represents the impact of intercompany transaction eliminations when arriving at the the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied.

+ References

No definition available.

+ Details

Name:	strt_IncomeLossFromEquityMethodInvestmentIntercompanyProfitEliminations
Namespace Prefix:	strt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of the cost of sales reported by an equity method investment of the entity.

+ References

No definition available.

+ Details

Name:	us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCostOfSales
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of gross profit (loss) reported by an equity method investment of the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(g))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33912-111571

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 28

-Subparagraph (f)

-URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14064-108612

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph bb

-Article 1

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph g

-Subparagraph 1, 2

-Article 4

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph w

-Article 1

+ Details

Name:	us-gaap_EquityMethodInvestmentSummarizedFinancialInformationGrossProfitLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of net income (loss) reported by an equity method investment of the entity.

+ References

+ Details

Name:	us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of revenue from sale of goods and services reduced by sales returns, allowances, and discounts reported by an equity method investment of the entity.

+ References

No definition available.

+ Details

Name:	us-gaap_EquityMethodInvestmentSummarizedFinancialInformationRevenue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 9

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=35755396&loc=d3e33749-111570

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.12)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 11

-Article 7

+ Details

Name:	us-gaap_IncomeLossFromEquityMethodInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_NetIncomeLossAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	dei_LegalEntityAxis=strt_NextLockLlcMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=strt_VehicleAccessSystemsTechnologyLlcMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: