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Note 11 - Financial Instruments - Swaps Outstanding (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 03, 2016
Nov. 28, 2015
Oct. 07, 2015
Foreign Currency Cash Flow Hedge Asset at Fair Value $ 4,654 $ 5,384  
Cross Currency Interest Rate Contract [Member]      
Derivative, Notional Amount 134,736   $ 134,736
Foreign Currency Cash Flow Hedge Asset at Fair Value $ 4,654    
Cross Currency Interest Rate Contract [Member] | Currency Swap 1 [Member]      
Fiscal Year of Expiration 2017    
Interest rate minimum 3.05%    
Derivative, Notional Amount $ 44,912    
Foreign Currency Cash Flow Hedge Asset at Fair Value $ 1,905    
Interest rate maximum 3.9145%    
Cross Currency Interest Rate Contract [Member] | Currency Swap 2 [Member]      
Fiscal Year of Expiration 2018    
Interest rate minimum 3.45%    
Derivative, Notional Amount $ 44,912    
Foreign Currency Cash Flow Hedge Asset at Fair Value $ 1,560    
Interest rate maximum 4.5374%    
Cross Currency Interest Rate Contract [Member] | Currency Swap 3 [Member]      
Fiscal Year of Expiration 2019    
Interest rate minimum 3.80%    
Derivative, Notional Amount $ 44,912    
Foreign Currency Cash Flow Hedge Asset at Fair Value $ 1,189    
Interest rate maximum 5.053%