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Note 8 - Stockholders' Equity (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Apr. 06, 2023
Nov. 30, 2021
Apr. 29, 2023
Apr. 30, 2022
Payments for Repurchase of Common Stock     $ 3,099 $ 8,138
Stock Repurchased During Period, Shares (in shares)     132,385  
Stock Repurchase Program, Authorized Amount     $ 50,000  
Dividends Payable, Amount Per Share (in dollars per share) $ 1.50 $ 1.25    
Dividends Payable, Date to be Paid Apr. 06, 2023      
Dividends Payable, Date of Record Mar. 23, 2023      
Dividends Payable, Date Declared   Nov. 30, 2021    
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Retained Earnings [Member]        
Stockholders' Equity, Period Increase (Decrease)     $ 800