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Market Based Stock Option Awards (Details)
3 Months Ended 6 Months Ended
Nov. 18, 2014
$ / shares
Oct. 03, 2012
USD ($)
tranche
$ / shares
shares
Aug. 01, 2015
USD ($)
$ / shares
shares
Aug. 02, 2014
USD ($)
$ / shares
Aug. 01, 2015
USD ($)
$ / shares
shares
Aug. 02, 2014
USD ($)
Jan. 31, 2015
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Share-based compensation | $         $ 1,376,000 $ 2,918,000  
Allocated Share-based Compensation Expense | $     $ 326,000 $ 1,319,000 $ 587,000 $ 2,063,000  
Granted, weighted average grant date fair value     $ 4.10 $ 3.75      
Expected Term         6 years 5 years  
2011 Omnibus Incentive Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Granted | shares         295,000    
Options outstanding | shares     2,071,000   2,071,000   2,463,000
Granted, weighted average grant date fair value         $ 5.77    
Number of consecutive trading days   20 days          
Market Based Stock Options Awards [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Granted | shares   2,125,000          
Stock Option Plans, Exercise Price Range, Lower Range Limit   $ 6.00          
Risk Free Interest Rate   0.38%          
Weighted average volatility rate   78.00%          
Options outstanding | shares     953,127   953,127    
Granted, weighted average grant date fair value   $ 4.00          
Number of tranches | tranche   3          
Expected Term   3 years 3 months 18 days          
Grant date fair value | $   $ 1,998,000          
Tranche 1 [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting rights   .5          
Granted, weighted average grant date fair value   $ 0.93          
Expected Term   15 months          
Tranche 2 [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting rights   .25          
Stock Option Plans, Exercise Price Range, Lower Range Limit   $ 8.00          
Granted, weighted average grant date fair value   $ 0.95          
Expected Term   20 months          
Tranche 3 [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting rights   .25          
Stock Option Plans, Exercise Price Range, Lower Range Limit   $ 10.00          
Granted, weighted average grant date fair value   $ 0.95          
Expected Term   24 months          
Restricted Stock [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Share-based compensation | $     $ 442,000 $ 555,000 $ 789,000 $ 855,000  
Risk Free Interest Rate 1.03%            
Granted, weighted average grant date fair value $ 4.91