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Note 10 - Pension Liability (Details) - USD ($)
$ in Thousands
May 28, 2016
Nov. 28, 2015
Supplemental Employee Retirement Plan [Member]    
Accrued compensation and benefits $ 749 $ 749
Postemployment Benefits Liability, Noncurrent 10,939 10,929
Postemployment Benefits Liability 11,688 11,678
Unfunded Deferred Compensation Plan [Member]    
Accrued compensation and benefits 320 320
Postemployment Benefits Liability, Noncurrent 1,715 1,765
Postemployment Benefits Liability 2,035 2,085
Postemployment Benefits Liability, Noncurrent $ 12,654 $ 12,694