Fair Value of Financial Instruments (Details Textual) (USD $)	Dec. 30, 2012
Fair Value of Financial Instruments (Textual) [Abstract]
Transfers of assets between Level 1 and Level 2	$ 0

Fair value assets between level 1 to Level 2 transfers amount.

No definition available.

Name:	strt_FairValueAssetsBetweenLevelOneToLevelTwoTransfersAmount
Namespace Prefix:	strt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant