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Note 14 - Income Taxes (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Nov. 30, 2019
Nov. 24, 2018
Nov. 25, 2017
Nov. 26, 2016
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent   22.20% 35.00% 35.00%
Tax Cuts and Jobs Act of 2017 Provisional Adjustment of Deferred Tax Asset Liability   $ 1,331    
Effective Income Tax Rate Reconciliation, Share-based Compensation, Excess Tax Benefit, Amount   223 $ 554 $ 87
Income Taxes Paid, Net, Total   1,431 $ 7,516 $ 9,949
State and Local Jurisdiction [Member]        
Operating Loss Carryforwards, Total   $ 4,647    
State and Local Jurisdiction [Member] | Earliest Tax Year [Member]        
Operating Loss Carryforwards, Expiration Year   2021    
State and Local Jurisdiction [Member] | Latest Tax Year [Member]        
Operating Loss Carryforwards, Expiration Year   2027    
Scenario, Forecast [Member]        
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 21.00%