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Stock Grant Volatility (Details)
3 Months Ended
May 03, 2014
May 04, 2013
Share-based Compensation [Abstract]    
Award Vesting Period 3 years  
Expected Volatility Rate, Minimum 97.00% 100.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum 97.00% 100.00%
Risk Free Interest Rate, Minimum 1.50% 1.10%
Risk Free Interest Rate, Maximum 1.50% 1.20%
Expected Term 5 years 6 years
Grant Term Limit 10 years  
Exercise Term Limit 10 years