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Note 8 - Post Employment Benefit Obligations (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Aug. 30, 2014
Aug. 30, 2014
Supplemental Employee Retirement Plan [Member]
Nov. 30, 2013
Supplemental Employee Retirement Plan [Member]
Aug. 30, 2014
Unfunded Deferred Compensation Plan [Member]
Nov. 30, 2013
Unfunded Deferred Compensation Plan [Member]
Note 8 - Post Employment Benefit Obligations (Details) [Line Items]          
Postemployment Benefits Liability   $ 9,305 $ 9,775 $ 2,232 $ 2,555
Increase (Decrease) in Deferred Compensation $ (124)