Note 15 - Employee Benefit Plans (Details) - Components of Accumulated Other Comprehensive Income - USD ($) $ in Thousands	Jan. 03, 2016	Dec. 28, 2014
Domestic SCP [Member]
Note 15 - Employee Benefit Plans (Details) - Components of Accumulated Other Comprehensive Income [Line Items]
Unrecognized actuarial loss	$ 4,226	$ 3,949

After tax net amount of gain (loss) that are not yet recognized as a component of net periodic benefit cost, and that are recognized as increases (decreases) in other comprehensive income as they arise.

No definition available.

Name:	us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesAfterTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant