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Note 8 - Post-Employment Benefit Obligations (Details) (USD $)
In Thousands, unless otherwise specified
Aug. 31, 2013
Nov. 24, 2012
Note 8 - Post-Employment Benefit Obligations (Details) [Line Items]    
Postemployment Benefits Liability, Noncurrent $ 11,118 $ 11,577
Supplemental Employee Retirement Plan, Defined Benefit [Member]
   
Note 8 - Post-Employment Benefit Obligations (Details) [Line Items]    
Postemployment Benefits Liability 9,407 9,805
Postemployment Benefits Liability, Noncurrent 8,548 8,962
Unfunded Deferred Compensation Plan [Member]
   
Note 8 - Post-Employment Benefit Obligations (Details) [Line Items]    
Postemployment Benefits Liability, Noncurrent $ 2,570 $ 2,615