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Organization and Summary of Significant Accounting Policies (Details 11) - Supplier | 12 Months Ended
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Jul. 01, 2018 | Jul. 02, 2017 | Jul. 03, 2016
Supplier Concentrations |  |  |
Percentage of inventory purchases from major suppliers | 32.00% | 39.00% | 36.00%
Number of major Suppliers | 5 | 7 | 6

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- Definition The amount represents the number of major suppliers from which inventory purchases are made. + References No definition available. + Details
Name: | strt_NumberOfSuppliers
Namespace Prefix: | strt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition The percentage represents the percentage of inventory purchases made from major suppliers, in which the percentage is calculated on the basis of the value of the inventory purchases. + References No definition available. + Details
Name: | strt_PercentageOfInventoryPurchases
Namespace Prefix: | strt_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Supplier concentrations. + References No definition available. + Details
Name: | strt_SupplierConcentrationsAbstract
Namespace Prefix: | strt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration