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Note 9 - Post Employment Benefit Obligations (Details Textual)
$ in Thousands
3 Months Ended 6 Months Ended
May 02, 2017
USD ($)
May 01, 2017
May 27, 2017
USD ($)
May 28, 2016
USD ($)
May 27, 2017
USD ($)
May 28, 2016
USD ($)
Nov. 26, 2016
USD ($)
Postemployment Benefits Liability, Noncurrent     $ 13,714   $ 13,714   $ 12,760
Unfunded Deferred Compensation Plan [Member]              
Postemployment Benefits Liability, Noncurrent     1,929   1,929   1,969
Pension Plan [Member]              
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), before Tax     932 932  
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax, Attributable to Parent     350 350  
Supplemental Employee Retirement Plan [Member]              
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax, Attributable to Parent     (36) $ (36) (71) $ (70)  
Postemployment Benefits Liability     11,879   11,879   $ 11,863
Management Savings Plan [member] | Pension Plan [Member]              
Defined Benefit Plan, Fixed Future Benefit Award $ 2,000            
Defined Benefit Plan, Fixed Future Benefit Award, Individual Participants $ 400            
Defined Benefit Plan, Benefit Obligation, Number of Annual Installments 10            
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), before Tax     932        
Defined Benefit Plan, Benefit Obligation     950   950    
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), after Tax     558   558    
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax, Attributable to Parent     350        
Nonqualified Deferred Compensation Plan [Member] | Management Savings Plan [member]              
Deferred Compensation Arrangement with Individual, Deferred Compensation, Maximum Percentage of Base Salary   75.00%          
Deferred Compensation Arrangement with Individual, Deferred Compensation, Maximum Percentage of Discretionary, Annual Incentive or Other Bonus   100.00%          
Deferred Compensation Arrangement with Individual, Deferred Compensation, Annual installment Payments, Maximum Number of Years   15 years          
Deferred Compensation Arrangement with Individual, Deferred Compensation, Scheduled Distributions, Maximum Number of Years   5 years          
Deferred Compensation Arrangement with Individual, Compensation Expense     $ 28   $ 28