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Shareholders' Equity Restricted Stock (Details)
3 Months Ended 12 Months Ended
Jun. 19, 2015
Nov. 18, 2014
$ / shares
shares
Jun. 18, 2014
USD ($)
tranche
shares
Mar. 17, 2014
USD ($)
shares
Mar. 13, 2014
USD ($)
shares
Nov. 26, 2013
Nov. 25, 2013
USD ($)
shares
Jun. 19, 2013
USD ($)
shares
Oct. 03, 2012
USD ($)
tranche
shares
Jan. 30, 2016
USD ($)
shares
Oct. 31, 2015
shares
Aug. 01, 2015
shares
May. 02, 2015
shares
Jan. 30, 2016
USD ($)
$ / shares
shares
Jan. 31, 2015
USD ($)
$ / shares
shares
Feb. 01, 2014
USD ($)
$ / shares
Oct. 01, 2015
USD ($)
Jun. 18, 2015
USD ($)
tranche
May. 30, 2015
USD ($)
Mar. 20, 2015
USD ($)
Nov. 17, 2014
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                          
Share-based compensation                           $ 2,275,000 $ 3,860,000 $ 3,217,000          
Unrecognized compensation cost related to non-vested awards                   $ 923,000       $ 923,000              
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period                           3 years              
Total grant date fair value                                         $ 1,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value | $ / shares                           $ 3.95 $ 3.92 $ 3.96          
Restricted Stock [Member]                                          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                          
Share-based compensation                           $ 1,664,000 $ 1,323,000 $ 812,000          
Unrecognized compensation cost related to non-vested awards                   2,360,000       $ 2,360,000              
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term                           1 year 7 months 6 days              
Restricted stock vested in period, total fair value                           $ 378,000 $ 1,136,000 $ 2,800,000          
Granted | shares     56,000 4,000 53,000   436,000 44,000 300,000     182,334   453,000              
Number of tranches | tranche     7           3                 8      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 12 months 3 years     3 years 3 years   12 months     3 years                    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate   60.00%             78.00%                        
Total grant date fair value     $ 281,000 $ 23,500 $ 290,000   $ 2,426,000 $ 228,000 $ 425,000 $ 86,360       $ 86,360     $ 80,640 $ 520,000 $ 158,000 $ 417,593 $ 1,373,000
Number of non-management board members granted shares       2       6                          
Non-vested shares outstandings | shares                   861,000       861,000 704,000            
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value | $ / shares   $ 4.91                                      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate   1.03%             0.32%                        
Restricted Stock [Member] | Chief Strategy Officer [Member]                                          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                          
Granted | shares   79,916                                      
Restricted Stock [Member] | Chief Executive Officer [Member]                                          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                          
Granted | shares   199,790                                      
Fiscal 2015 - Restricted Stock - Time Based [Member]                                          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                          
Granted | shares                   37,000 32,000 26,810 67,786                
33% - 39% [Member] | Restricted Stock [Member]                                          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                          
Restricted Stock, Vesting Criteria, Cumulative Total Shareholder Return                                         50.00%
25% - 32% [Member] | Restricted Stock [Member]                                          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                          
Restricted Stock, Vesting Criteria, Cumulative Total Shareholder Return                                         25.00%
Below 25 Percent [Member] | Restricted Stock [Member]                                          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                          
Restricted Stock, Vesting Criteria, Cumulative Total Shareholder Return                                         0.00%
50% or Above [Member] | Restricted Stock [Member]                                          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                          
Restricted Stock, Vesting Criteria, Cumulative Total Shareholder Return                                         100.00%
40% - 49% [Member] | Restricted Stock [Member]                                          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                          
Restricted Stock, Vesting Criteria, Cumulative Total Shareholder Return                                         75.00%