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Note 8 - Long-term Debt (Details) - USD ($)
Sep. 30, 2015
Dec. 28, 2014
Term Loan [Member] | Credit Agreement [Member]    
Long-term Debt $ 120,000,000
Credit Agreement [Member]    
Long-term Line of Credit $ 25,000,000
Financing Facility [Member]    
Long-term Line of Credit $ 11,691,000
Long-term Debt $ 146,373,000 11,741,000
Other long-term obligations 1,373,000 50,000
Less: Current portion $ (7,273,000) (1,368,000)
Less: Unamortized debt discount (1,432,000)
Long-term debt, net of current portion and discount $ 139,100,000 $ 8,941,000