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Stock Based Compensation Narrative (Details) (USD $)
3 Months Ended 9 Months Ended 0 Months Ended 9 Months Ended
Oct. 27, 2012
Number
Oct. 29, 2011
Oct. 27, 2012
Number
Oct. 29, 2011
Oct. 27, 2012
Minimum [Member]
Oct. 03, 2012
2011 Omnibus Incentive Plan [Member]
Oct. 27, 2012
2011 Omnibus Incentive Plan [Member]
Oct. 27, 2012
2004 Omnibus Incentive Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Allocated Share-based Compensation Expense $ 406,000 $ 609,000 $ 1,072,000 $ 2,177,000        
Number of Omnibus Stock Plans 2   2          
Number of shares authorized             3,000,000 4,000,000
Purchase price of common stock, percent         100.00%      
Award Vesting Period     3 years   3 years      
Granted, weighted average grant date fair value     $ 0.98 $ 4.65   $ 4.00 $ 3.92 $ 1.70
Total intrinsic value     91,000 1,806,000        
Unrecognized compensation cost related to non-vested awards $ 3,192,000   $ 3,192,000          
Period for recognition of unrecognized compensation cost     10 months 24 days