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Shareholders' Equity - Restricted Stock Units (Details) - USD ($)
$ in Thousands
12 Months Ended
Feb. 02, 2019
Feb. 03, 2018
Jan. 28, 2017
Aug. 04, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation expense $ 3,064 $ 2,888 $ 1,946  
Unrecognized compensation cost related to non-vested awards       $ 0
Restricted Stock Units [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation expense 1,792 1,973 1,424  
Unrecognized compensation cost related to non-vested awards $ 1,848      
Weighted average expected life 1 year 8 months 14 days      
Restricted stock vested in period, total fair value $ 1,216 $ 409 $ 761  
Restricted Stock - Time Based [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award Vesting Period 3 years      
Board Member [Member] | Restricted Stock - Time Based [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award Vesting Period 12 months