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Note 14 - Accumulated Other Comprehensive Loss (Details) - Accumulated Other Comprehensive Loss (Parentheticals) (Series A Preferred Stock [Member], USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 29, 2013	Dec. 31, 2012
Series A Preferred Stock [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Employee benefit-related adjustments tax - U.S.	$ 2,512	$ 2,512

X

- Definition

Accumulated other comprehensive income loss defined benefit pension and other postretirement plans tax portion.

+ References

No definition available.

+ Details

Name:	sypr_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansTaxPortion
Namespace Prefix:	sypr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

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