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Organization and Summary of Significant Accounting Policies (Details 5) - USD ($) $ in Thousands | 12 Months Ended
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Jul. 01, 2018 | Jul. 02, 2017 | Jul. 03, 2016
Activity related to the repair and maintenance supply parts reserve |  |  |
Balance, Beginning of Year | $ 900 | $ 700 | $ 620
Provision Charged to Expense | 201 | 438 | 366
Amounts Written Off | 201 | 238 | 286
Balance, End of Year | $ 900 | $ 900 | $ 700

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- Definition Activity related to repair and maintenance supply parts reserve. + References No definition available. + Details
Name: | strt_ActivityRelatedToRepairAndMaintenanceSupplyPartsReserveAbstract
Namespace Prefix: | strt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount of the valuation reserve related to the repair and maintenance supply parts inventory. + References No definition available. + Details
Name: | strt_RepairAndMaintenanceSupplyPartsReserve
Namespace Prefix: | strt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition The amount of the decrease in the repair and maintenance supply parts inventory valuation reserve resulting from write-off's and disposals of inventory. + References No definition available. + Details
Name: | strt_RepairAndMaintenanceSupplyPartsReserveAmountsWrittenOff
Namespace Prefix: | strt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The amount of the increase in the repair and maintenance supply parts inventory valuation reserve recognized as expense in the income statement. + References No definition available. + Details
Name: | strt_RepairAndMaintenanceSupplyPartsReserveProvisionChargedToExpense
Namespace Prefix: | strt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration