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Shareholders' Equity - Stock Option Awards - Narrative (Details)
12 Months Ended
Feb. 02, 2019
USD ($)
$ / shares
shares
Feb. 03, 2018
USD ($)
$ / shares
Jan. 28, 2017
USD ($)
$ / shares
Aug. 04, 2018
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of omnibus stock plans for which stock awards can be currently granted 1      
Granted, weighted average grant date fair value | $ / shares $ 0.74 $ 0.91 $ 0.96  
Intrinsic value of options exercised $ 26,000 $ 15,000 $ 0  
Unrecognized compensation cost related to non-vested awards       $ 0
Stock Option Tax Benefit [Abstract]        
Employee Service Share-based Compensation, Tax Benefit from Exercise of Stock Options $ 7,000 6,000 0  
2011 Omnibus Incentive Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares authorized | shares 13,000,000      
Stock Options [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock option awards compensation expense $ 1,157,000 $ 915,000 $ 522,000  
Unrecognized compensation cost related to non-vested awards $ 1,506,000      
Period for recognition of unrecognized compensation cost 1 year 9 months 2 days      
Stock Options [Member] | Minimum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Purchase price of common stock, percent 100.00%      
Award Vesting Period 3 years      
Stock Options [Member] | Maximum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Grant term limit after the effective date of the respective plan's inception 10 years      
Exercise term limit from date of grant 10 years