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Note 13 - Financial Instruments - Swaps Outstanding (Details) - Cross Currency Interest Rate Contract [Member] - USD ($)
$ in Thousands
9 Months Ended
Sep. 02, 2017
Feb. 24, 2017
Oct. 07, 2015
Derivative, Notional Amount $ 177,336 $ 42,600 $ 134,736
Fair Value $ (14,493)    
Currency Swap 1 [Member]      
Interest rate maximum 3.9145%    
Fiscal Year of Expiration 2017    
Interest rate minimum 3.05%    
Derivative, Notional Amount $ 44,912    
Fair Value $ (2,568)    
Currency Swap 2 [Member]      
Interest rate maximum 4.5374%    
Fiscal Year of Expiration 2018    
Interest rate minimum 3.45%    
Derivative, Notional Amount $ 44,912    
Fair Value $ (3,155)    
Currency Swap 3 [Member]      
Interest rate maximum 5.053%    
Fiscal Year of Expiration 2019    
Interest rate minimum 3.80%    
Derivative, Notional Amount $ 44,912    
Fair Value (3,688)    
Currency Swap 4 [Member]      
Fair Value $ (5,082)    
Interest rate maximum 4.30375%    
Fiscal Year of Expiration 2020    
Interest rate minimum 1.95%    
Derivative, Notional Amount $ 42,600