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Note 11 - Share-based Compensation (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Oct. 28, 2023
Oct. 29, 2022
Oct. 28, 2023
Oct. 29, 2022
Oct. 28, 2022
May 17, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested in Period, Fair Value $ 5,000 $ 4,000        
Proceeds from Stock Options Exercised 0 $ 1,000 $ 5,000 $ 4,000    
Share-Based Payment Arrangement, Option [Member]            
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount 3,000   $ 3,000      
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)     1 year 7 months 6 days      
Restricted Stock Units (RSUs) [Member]            
Dividends     $ 0      
Restricted Stock Units (RSUs) [Member] | Management [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)     3 years      
Restricted Stock Units (RSUs) [Member] | Director [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)     1 year      
Performance Shares [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)     1 year      
Dividends 0          
Restricted Stock Units (RSUs) and Performance Stock Units [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value     $ 23,000   $ 6,000  
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount $ 28,000   $ 28,000      
2007 Stock Incentive Plan [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares) 11,342,000 [1]   11,342,000 [1]     10,300,000
[1] On May 17, 2023, the Company's shareholders approved the amended and restated 2007 Stock Incentive Plan, which increased shares available for grant by 10,300,000. There were no other significant modifications to the plan.