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Shareholders' Equity - Restricted Stock Units (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Aug. 03, 2019
Aug. 04, 2018
Aug. 03, 2019
Aug. 04, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation expense     $ 1,257 $ 1,358
Restricted Stock Units (RSUs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation expense $ 48 $ 302 486 817
Unrecognized compensation cost related to non-vested awards $ 1,422   $ 1,422  
Period for recognition of unrecognized compensation cost     1 year 10 months 13 days  
Restricted stock vested in period, total fair value     $ 382 $ 1,139
Restricted Stock - Time Based [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award Vesting Period     3 years  
Non-employee Director [Member] | Restricted Stock - Time Based [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award Vesting Period     12 months