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Stockholders' Equity - Activity In Stock Options (Details) - Stock Options - USD ($)
12 Months Ended
Feb. 02, 2019
Feb. 03, 2018
Jan. 28, 2017
Shares      
Outstanding at the beginning of the period (in shares) 375,334 1,092,502  
Granted (in shares) 106,000 143,000  
Cancelled/forfeited (in shares) (64,833) (860,168)  
Outstanding at the end of the period (in shares) 416,501 375,334 1,092,502
Vested and Exercisable at the end of the period (in shares) 230,165    
Weighted Average Price      
Outstanding at the beginning of the period (in dollars per share) $ 10.59 $ 16.59  
Granted (in dollars per share) 0.59 3.61  
Cancelled/forfeited (in dollars per share) 11.34 17.05  
Outstanding at the end of the period (in dollars per share) 7.93 $ 10.59 $ 16.59
Vested and Exercisable at the end of the period (in dollars per share) $ 12.47    
Weighted Average Remaining Contractual Term (in years)      
Outstanding 3 years 6 months 4 years 2 months 12 days 3 years 8 months 12 days
Vested and Exercisable at the end of the period 2 years 7 months 6 days    
Intrinsic value of options exercised (in dollars) $ 0 $ 0  
Fair value      
Weighted average grant date fair value of options granted (in dollars per share) $ 0.32 $ 1.51  
Intrinsic value of options exercised (in dollars) $ 0 $ 0  
Unrecognized stock-based compensation      
Unrecognized stock-based compensation expense (in dollars) $ 100,000    
Weighted average period for recognition of unrecognized stock-based compensation expense 1 year 3 months 18 days    
Total fair value of vested options (in dollars) $ 100,000 $ 300,000