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Note 10 - Long-Term Debt (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Jan. 15, 2016
Feb. 25, 2018
Mar. 01, 2020
Mar. 03, 2019
Feb. 25, 2018
Amortization of Debt Issuance Costs   $ 144      
Interest Expense, Total     $ 0 $ 0 $ 2,269
HSBC Bank USA [Member] | Letter of Credit [Member]          
Line of Credit Facility, Maximum Borrowing Capacity $ 2,000        
HSBC Bank USA [Member] | Revolving Credit Facility [Member]          
Debt Instrument, Term (Year) 3 years        
Line of Credit Facility, Maximum Borrowing Capacity $ 75,000