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Restricted Stock Market Based Restricted Stock (Details) (USD $)
3 Months Ended 0 Months Ended 0 Months Ended
May 04, 2013
Apr. 28, 2012
Oct. 03, 2012
Restricted Stock [Member]
tranche
May 04, 2013
Restricted Stock [Member]
Feb. 02, 2013
Restricted Stock [Member]
Oct. 03, 2012
Tranche 1 [Member]
Oct. 03, 2012
Tranche 1 [Member]
Restricted Stock [Member]
Oct. 03, 2012
Tranche 2 [Member]
Oct. 03, 2012
Tranche 2 [Member]
Restricted Stock [Member]
Oct. 03, 2012
Tranche 3 [Member]
Oct. 03, 2012
Tranche 3 [Member]
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Non-vested shares outstandings     300,000 540,000 772,000            
Number of tranches     3                
Number of consecutive trading days     20 days                
Exercise price range, minimum             $ 6.00   $ 8.00   $ 10.00
Award vesting percentage             50.00%   25.00%   25.00%
Risk Free Interest Rate     0.32%                
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate     78.00%                
Granted, weighted average grant date fair value $ 2.68         $ 0.93 $ 1.48 $ 0.95 $ 1.39 $ 0.95 $ 1.31
Expected Term 6 years 0 years 2 years 9 months 18 days     15 months 15 months 20 months 20 months 24 months 24 months