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Note 3 - Business Combinations (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Dec. 21, 2017
May 26, 2018
Feb. 25, 2017
May 26, 2018
Acquisition of Lane Venture [Member]        
Payments to Acquire Businesses, Gross $ 15,556      
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Inventory   $ 168    
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Accrued Liabilities   38    
Goodwill, Purchase Accounting Adjustments   (129)    
Acquisition of Lane Venture [Member] | Selling, General and Administrative Expenses [Member]        
Business Combination, Acquisition Related Costs   $ 26   $ 254
Bassett Home Furnishings, Columbus, Ohio [Member]        
Business Combination, Consideration Transferred, Total     $ 655