Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Stock Options (Details)

v3.8.0.1
Stockholders' Equity - Stock Options (Details) - USD ($)
 12 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Shares    
Granted (in shares) 0  
Additional disclosure    
Stock-based compensation expense $ 586,000 $ 810,000
Stock options    
Shares    
Outstanding at the beginning of the period (in shares) 314,537  
Forfeited, cancelled or expired (in shares) (102,145)  
Outstanding at the end of the period (in shares) 212,392 314,537
Options fully vested and those expected to vest (in shares) 212,392  
Options exercisable 212,392  
Weighted Average Exercise Price    
Outstanding at the beginning of the period (in dollars per share) $ 15.48  
Forfeited, cancelled or expired (in dollars per share) 4.62  
Outstanding at the end of the period (in dollars per share) 20.71 $ 15.48
Options fully vested and those expected to vest (in dollars per share) 20.71  
Exercisable (in dollars per share) $ 20.71  
Weighted Average Remaining Contractual Term (in years)    
Outstanding at the end of the period 2 years 9 months 18 days  
Options fully vested and those expected to vest 2 years 9 months 18 days  
Exercisable 2 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%
Expected lives (in years)   5 years 8 months 12 days
Expected volatility (as a percent)   133.90%
Weighted average grant date fair value of options granted during the period (in dollars per share)   $ 1.52
Additional disclosure    
Stock-based compensation expense $ 16,900 $ 20,000
Total compensation cost related to unvested stock option awards $ 0