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Debt (Narrative) (Details) - USD ($)
1 Months Ended 2 Months Ended 12 Months Ended
Mar. 26, 2022
Mar. 23, 2022
Jan. 28, 2023
Jan. 29, 2022
Credit Agreement        
Debt Instrument [Line Items]        
Line of credit facility, expiration date   Mar. 23, 2027    
Amount outstanding during period     $ 0 $ 0
Maximum amount outstanding during period   $ 100,000,000 0 $ 0
Outstanding letters of credit     700,000  
Line of credit, available borrowing amount     $ 99,300,000  
Interest rate   3.00%    
Maximum dividends or share repurchases per year without restriction   $ 15,000,000    
Minimum maintenance of payment conditions for dividends and share repurchases   15,000,000    
Line of credit swing line sublimit   15,000,000    
Secured or unsecured Debt $ 20,000,000      
Line of credit facility minimum net worth   $ 250,000,000    
Credit Agreement | Minimum        
Debt Instrument [Line Items]        
Commitment fee percentage rate 0.20%      
Credit Agreement | Maximum        
Debt Instrument [Line Items]        
Rent expenses 3.50%      
Commitment fee percentage rate 0.30%      
Credit Agreement | Base Rate | Minimum        
Debt Instrument [Line Items]        
Interest rate   0.00%    
Credit Agreement | Base Rate | Maximum        
Debt Instrument [Line Items]        
Interest rate   1.00%    
Credit Agreement | SOFR plus | Minimum        
Debt Instrument [Line Items]        
Interest rate   0.90%    
Credit Agreement | SOFR plus | Maximum        
Debt Instrument [Line Items]        
Interest rate   1.90%    
Previous Credit Agreement        
Debt Instrument [Line Items]        
Credit facility interest rate description     the Previous Credit Agreement bore interest, at our option, at (1) the agent bank’s prime rate as defined in the Previous Credit Agreement plus 1.0%, with the prime rate defined as the greater of (a) the Federal Fund rate plus 0.50% or (b) the interest rate announced from time to time by the agent bank as its “prime rate” or (2) LIBOR plus 1.50% to 2.50%, depending on our achievement of certain performance criteria. If the stated LIBOR rate was less than 0.75%, the LIBOR rate for purposes of calculating the interest rate under the Previous Credit Agreement would have been 0.75%.  
Covenant description     (1) Total Shareholders’ Equity (as defined in the Previous Credit Agreement) could not fall below $250 million at the end of each fiscal quarter; (2) the ratio of funded debt plus three times rent expense to EBITDA (as defined in the Previous Credit Agreement) plus rent expense could not exceed 3.0 to 1.0, except for the fiscal quarters ending on or about July 31, 2020; October 31, 2020; and January 31, 2021; (3) the aggregate amount of cash dividends for a fiscal year could not exceed $10 million; and (4) distributions in the form of redemptions of Equity Interests (as defined in the Previous Credit Agreement) could be made solely with cash on hand so long as before and immediately after such distributions there were no revolving loans outstanding under the Previous Credit Agreement. We were in compliance with these covenants at January 29, 2022.  
Previous Credit Agreement | Minimum        
Debt Instrument [Line Items]        
Commitment fee percentage rate     0.30%  
Previous Credit Agreement | Maximum        
Debt Instrument [Line Items]        
Commitment fee percentage rate     0.40%