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Note 20 - Quarterly Results of Operations (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Nov. 24, 2018
May 26, 2018
Feb. 24, 2018
Nov. 25, 2017
Aug. 26, 2017
May 27, 2017
Nov. 24, 2018
Nov. 25, 2017
Nov. 26, 2016
Gain on Sale of Investments     $ 2,157     $ 2,026      
Gain (Loss) on Disposition of Property Plant Equipment, Total             $ 234 $ 1,190 $ 128
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount $ (704) $ (155)              
Asset Impairment Charges, Total             469
Gain (Loss) on Contract Termination             (301)
Sale of Investments, Tax           1,241      
Impairment of Real Estate, Net           672      
Impairment of Real Estate, Tax Benefit           $ 412      
International Market Centers, L.P. [Member]                  
Gain on Sale of Investments       $ 591          
Sale of Investments, Tax       $ 363          
Leasehold Improvements [Member]                  
Asset Impairment Charges, Total 469           469 $ 0 $ 0
Gain (Loss) on Contract Termination $ 301           301    
Land and Building occupied by Spring, Texas Retail Store [Member]                  
Gain (Loss) on Disposition of Property Plant Equipment, Total   $ 165         $ 165    
Former Retail Store, Las Vegas, Nevada [Member]                  
Gain (Loss) on Disposition of Property Plant Equipment, Total         $ 1,220