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Shareholders' Equity - Stock Option Awards - Narrative (Details)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Oct. 28, 2017
USD ($)
shares
Oct. 29, 2016
USD ($)
Oct. 28, 2017
USD ($)
$ / shares
shares
Oct. 29, 2016
USD ($)
$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock option awards compensation expense $ 247 $ 119 $ 670 $ 374
Number of omnibus stock plans for which stock awards can be currently granted 1   1  
Granted, weighted average grant date fair value | $ / shares     $ 0.91 $ 0.94
Intrinsic value of options exercised     $ 10 $ 0
2011 Omnibus Incentive Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares authorized | shares 9,500,000   9,500,000  
Stock Options [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Unrecognized compensation cost related to non-vested awards $ 1,690   $ 1,690  
Period for recognition of unrecognized compensation cost     2 years 1 month 6 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