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Note 2 - Significant Accounting Policies (Details Textual)
$ in Thousands
3 Months Ended 12 Months Ended
Nov. 30, 2019
USD ($)
shares
Nov. 30, 2019
USD ($)
Nov. 24, 2018
USD ($)
Nov. 25, 2017
USD ($)
Nov. 25, 2018
USD ($)
Contract with Customer, Liability, Total $ 25,341 $ 25,341 $ 27,157    
Contract with Customer, Asset, after Allowance for Credit Loss, Total $ 441 $ 441     $ 512
Percent Of Aggregate Risk Exposure Net Of Reserves Attributable To Major Customers 28.00% 28.00% 33.00%    
Percentage of LIFO Inventory 52.00% 52.00% 52.00%    
Gain (Loss) on Disposition of Property Plant Equipment, Total   $ (515) $ 234 $ 1,190  
Depreciation, Total   14,250 13,737 13,587  
Impairment of Real Estate   (0) (0) 1,084  
Goodwill, Impairment Loss   1,926 0 0  
Pre-Opening Costs   1,117 2,081 2,413  
Advertising Expense   20,674 20,922 18,834  
Payments to Acquire Fixed Assets and Inventory $ 2,225        
Stock Issued During Period, Value, Purchase of Fixed Assets and Inventory $ 375        
Stock Issued During Period, Shares, Purchase of Fixed Assets and Inventory | shares 24,590        
Net Cash Provided by (Used in) Operating Activities, Total   9,809 29,907 37,057  
Net Cash Provided by (Used in) Investing Activities, Total   (11,173) (31,973) (6,992)  
Net Cash Provided by (Used in) Financing Activities, Total   (12,417) (18,415) (11,260)  
Payments to Acquire Productive Assets, Total $ 1,966        
Reclassification Of Investments in Company-owned Life Insurance Due to ASU 2016-15 [Member]          
Net Cash Provided by (Used in) Operating Activities, Total     (1,287) (857)  
Net Cash Provided by (Used in) Investing Activities, Total     1,287 857  
Reclassification Representing Portion of Debt Payment Attributable to Discount Accretion Due to ASU 2016-15 [Member]          
Net Cash Provided by (Used in) Operating Activities, Total     78 184  
Net Cash Provided by (Used in) Financing Activities, Total     (78) (184)  
Deliver Wholesale Merchandise to Customers [Member]          
Selling, General and Administrative Expense, Delivery Costs 18,402 18,402 17,511 18,514  
Deliver Retail Merchandise to Customers [Member]          
Selling, General and Administrative Expense, Delivery Costs 23,710 23,710 20,640 19,604  
Retail Real Estate [Member]          
Proceeds from Sale of Real Estate Held-for-investment, Total   1,475      
Depreciation, Total   94 103 127  
Retail Real Estate [Member] | Other Loss, Net [Member]          
Gain (Loss) on Disposition of Property Plant Equipment, Total   (98)      
Non-US [Member]          
Revenues, Total   $ 1,846 $ 1,587 $ 2,288  
Customer Concentration Risk [Member] | Revenue Benchmark [Member]          
Number of Major Customers   0 0 0  
Other Noncurrent Assets [Member]          
Real Estate Investment Property, Net, Total     $ 1,655    
Sales Commissions [Member] | Other Current Assets [Member]          
Capitalized Contract Cost, Net, Total $ 2,435 $ 2,435 $ 2,739    
Logistical Services [Member]          
Invoice Payment Term   30 days      
Goodwill, Impairment Loss   $ (0)      
Logistical Services [Member] | Customer Concentration Risk [Member] | Revenue Benchmark [Member]          
Number of Major Customers   2 2 2  
Concentration Risk, Percentage   44.00% 40.00% 47.00%  
Minimum [Member]          
Payment Terms For Wholesale Customers   30 days      
Minimum [Member] | Building and Building Improvements [Member]          
Property, Plant and Equipment, Useful Life     10 years    
Minimum [Member] | Machinery and Equipment [Member]          
Property, Plant and Equipment, Useful Life     5 years    
Maximum [Member]          
Payment Terms For Wholesale Customers   60 days      
Maximum [Member] | Building and Building Improvements [Member]          
Property, Plant and Equipment, Useful Life     39 years    
Maximum [Member] | Machinery and Equipment [Member]          
Property, Plant and Equipment, Useful Life     10 years