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Stock Based Compensation (Narrative) (Details) - USD ($)
3 Months Ended 12 Months Ended
May 02, 2020
May 04, 2019
Feb. 01, 2020
Feb. 02, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares available to be issued and sold pursuant to the 2017 Plan 1,000,000      
Stock-based compensation expense for ESPP $ 11,000 $ 11,000    
Income tax benefit - ESPP 3,000 1,000    
Tax expense in connection with the vesting of equity based compensation 45,000      
Income tax effect   1,900,000    
Restricted Stock Units and Performance Stock Units [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Fair value of stock awards vested during period $ 4,400,000 $ 2,000,000.0    
Weighted average grant date fair value of awards $ 14.88 $ 31.36    
Income tax effect $ 342,000 $ 247,000    
Unrecognized share-based compensation expense $ 3,800,000      
Unrecognized compensation cost, recognition period 1 year 10 months 24 days      
Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Fair value of stock awards vested during period $ 1,200,000 16,900,000    
Stock Appreciation Rights (SARs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted average grant date fair value of awards $ 4.27      
Income tax effect $ (26,000) $ 1,000    
Unrecognized share-based compensation expense $ 219,000      
Unrecognized compensation cost, recognition period 10 months 24 days      
Defined maximum gain $ 10.00 $ 10.00 $ 10.00 $ 10.00
Exercise price     $ 13.79 $ 34.95