Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Stock Options (Details)

v3.7.0.1
Stockholders' Equity - Stock Options (Details) - USD ($)
12 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Additional disclosure    
Share based compensation expenses $ 810,000 $ 2,570,000
Stock options    
Shares    
Outstanding at the beginning of the period (in shares) 467,631  
Granted (in shares) 88,930  
Forfeited, cancelled or expired (in shares) (242,024)  
Outstanding at the end of the period (in shares) 314,537 467,631
Options fully vested and those expected to vest (in shares) 314,537  
Options exercisable 225,607  
Weighted Average Exercise Price    
Outstanding at the beginning of the period (in dollars per share) $ 22.68  
Granted (in dollars per share) 1.70  
Forfeited, cancelled or expired (in dollars per share) 24.32  
Outstanding at the end of the period (in dollars per share) 15.48 $ 22.68
Options fully vested and those expected to vest (in dollars per share) 15.48  
Exercisable (in dollars per share) $ 20.92  
Weighted Average Remaining Contractual Term (in years)    
Outstanding at the end of the period 5 years 4 months 24 days  
Options fully vested and those expected to vest 5 years 4 months 24 days  
Exercisable 3 years 9 months 18 days  
Weighted-average assumptions used to calculate estimated fair value of each stock option    
Risk-free interest rates (as a percent) 1.30% 1.50%
Expected lives (in years) 5 years 8 months 12 days 5 years 8 months 12 days
Expected volatility (as a percent) 133.90% 59.00%
Weighted average grant date fair value of options granted during the period (in dollars per share) $ 1.52 $ 6.84
Additional disclosure    
Share based compensation expenses $ 20,000 $ 1,200,000
Total compensation cost related to unvested stock option awards $ 100,000  
Weighted average period for recognizing compensation cost 3 years 4 months 24 days  
Voluntarily terminated unvested stock options (in shares)   65,508
Compensation costs related to voluntarily terminated unvested stock options   $ 700,000