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Stock-Based Compensation (Narrative) (Details) - USD ($)
3 Months Ended
May 05, 2018
Apr. 29, 2017
Apr. 28, 2015
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 4,000  
Fair value of stock awards vested during period $ 887,000 704,000  
Restricted Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock-based compensation expense for restricted stock   $ 11,000  
Weighted average grant date fair value of awards   $ 24.37  
Number of shares restricted stock awards expired unvested 51,650    
Reduced share based compensation expense $ 916,000    
Unrecognized share-based compensation expense $ 3,400,000    
Unrecognized compensation cost, recognition period 1 year 1 month 6 days    
Restricted Stock Unit [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Weighted average grant date fair value of awards $ 23.27    
Unrecognized share-based compensation expense $ 4,100,000    
Unrecognized compensation cost, recognition period 1 year 8 months 12 days    
Stock Appreciation Rights (SARs) [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Weighted average grant date fair value of awards   4.50  
Defined maximum gain $ 10.00 $ 10.00 $ 10.00
Exercise price     $ 24.26