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Note 9 - Swaps Outstanding (Details) - USD ($)
$ in Thousands
9 Months Ended
Aug. 27, 2016
Nov. 28, 2015
Oct. 07, 2015
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    
Fair Value $ (342)    
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    
Fair Value $ (689)    
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    
Fair Value $ (1,017)    
Interest rate maximum 5.053%    
Cross Currency Interest Rate Contract [Member]      
Derivative, Notional Amount $ 134,736   $ 134,736
Fair Value (2,048)    
Fair Value $ 2,048 $ 5,384