XML 33 R43.htm IDEA: XBRL DOCUMENT v2.4.0.8
Shareholders' Equity Stock Grant Volatility (Details)
12 Months Ended
Feb. 01, 2014
Feb. 02, 2013
Jan. 28, 2012
Share-based Compensation [Abstract]      
Expected Volatility Rate, Minimum 98.00% 97.00% 88.00%
Expected Volatility Rate, Maximum 100.00% 99.00% 96.00%
Risk Free Interest Rate, Minimum 1.10% 1.00% 1.30%
Risk Free Interest Rate, Maximum 2.10% 1.40% 2.70%
Risk Free Interest Rate 1.00%    
Expected Term 6 years 6 years 6 years
Grant Term Limit 10 years    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 3 years    
Exercise Term Limit 10 years