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Narrative (Details)
3 Months Ended 9 Months Ended
Jun. 19, 2015
Nov. 18, 2014
$ / shares
Jun. 19, 2013
Oct. 03, 2012
$ / shares
shares
Oct. 31, 2015
USD ($)
$ / shares
shares
Nov. 01, 2014
USD ($)
$ / shares
Oct. 31, 2015
USD ($)
$ / shares
shares
Nov. 01, 2014
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Allocated Share-based Compensation Expense | $         $ 317,000 $ 260,000 $ 904,000 $ 2,323,000
Document Period End Date             Oct. 31, 2015  
Number of Omnibus Stock Plans         1   1  
Award Vesting Period             3 years  
Granted, weighted average grant date fair value         $ 3.95 $ 3.78    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value | $             $ 1,441,000 $ 5,647,000
Unrecognized compensation cost related to non-vested awards | $         $ 1,964,000   $ 1,964,000  
Period for recognition of unrecognized compensation cost             1 year 10 months 24 days  
Minimum [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Purchase price of common stock, percent         100.00%      
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period         10 years      
Award Vesting Period         3 years      
2011 Omnibus Incentive Plan [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Number of shares authorized | shares         6,000,000   6,000,000  
Granted, weighted average grant date fair value             $ 5.56  
Share-based Compensation Arrangement, Options, Grants in Period, Gross | shares             315,000  
Market Based Stock Options Awards [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Granted, weighted average grant date fair value       $ 4.00        
Share-based Compensation Arrangement, Options, Grants in Period, Gross | shares       2,125,000        
2004 Omnibus Incentive Stock Plan [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Granted, weighted average grant date fair value             $ 0.00  
Share-based Compensation Arrangement, Options, Grants in Period, Gross | shares             0  
Restricted Stock [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Award Vesting Period 12 months 3 years 12 months   3 years      
Granted, weighted average grant date fair value   $ 4.91            
Unrecognized compensation cost related to non-vested awards | $         $ 2,779,000   $ 2,779,000