Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Stock Options (Details)

v3.19.2
Stockholders' Equity - Stock Options (Details) - USD ($)
12 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Shares    
Granted (in shares) 0  
Weighted-average assumptions used to calculate estimated fair value of each warrant    
Risk-free interest rates (as a percent) 2.50%  
Contractual term (in years) 5 years  
Expected volatility (as a percent) 76.00%  
Additional disclosure    
Stock-based compensation expense $ 907,000 $ 586,000
Stock options    
Shares    
Outstanding at the beginning of the period (in shares) 212,392  
Forfeited, cancelled or expired (in shares) (37,448)  
Outstanding at the end of the period (in shares) 174,944 212,392
Options fully vested and those expected to vest (in shares) 174,944  
Options exercisable 174,944  
Weighted Average Exercise Price    
Outstanding at the beginning of the period (in dollars per share) $ 20.71  
Forfeited, cancelled or expired (in dollars per share) 19.64  
Outstanding at the end of the period (in dollars per share) 20.94 $ 20.71
Options fully vested and those expected to vest (in dollars per share) 20.94  
Exercisable (in dollars per share) $ 20.94  
Weighted Average Remaining Contractual Term (in years)    
Outstanding at the end of the period 2 years 3 months 18 days  
Options fully vested and those expected to vest 2 years 3 months 18 days  
Exercisable 2 years 3 months 18 days  
Additional disclosure    
Stock-based compensation expense $ 16,900  
Total compensation cost related to unvested stock option awards $ 0