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Note 18 - Retirement Plans (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Jan. 03, 2015 | Dec. 28, 2013
Compensation and Retirement Disclosure [Abstract] |  |
Deferred Compensation Arrangement with Individual, Employer Contribution | $ 569 us-gaap_DeferredCompensationArrangementWithIndividualEmployerContribution | $ 424 us-gaap_DeferredCompensationArrangementWithIndividualEmployerContribution

X
- Details
Name: | us-gaap_CompensationAndRetirementDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of payment into the fund established for purposes of making future disbursements to the individual in accordance with the terms and understanding of the deferred compensation arrangement. + References No definition available. + Details
Name: | us-gaap_DeferredCompensationArrangementWithIndividualEmployerContribution
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration