Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Stock Options (Details)

v3.3.1.900
Stock-Based Compensation - Stock Options (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2015
Dec. 31, 2014
Additional disclosure        
Share based compensation expenses $ 656 $ 571 $ 1,504 $ 1,795
Stock options        
Shares        
Outstanding at the beginning of the period (in shares)     658,171  
Granted (in shares) 0 0 29,225  
Forfeited, cancelled or expired (in shares)     (151,257)  
Outstanding at the end of the period (in shares) 536,139   536,139  
Vested and expected to vest (in shares) 536,139   536,139  
Exercised (in shares)     452,593  
Weighted Average Exercise Price        
Outstanding at the beginning of the period (in dollars per share)     $ 25.57  
Granted (in dollars per share)     12.80  
Forfeited, cancelled or expired (in dollars per share)     34.72  
Outstanding at the end of the period (in dollars per share) $ 22.29   22.29  
Vested and expected to vest (in dollars per share) 22.29   22.29  
Exercisable (in dollars per share) $ 22.73   $ 22.73  
Weighted Average Remaining Contractual Term (in years)        
Outstanding at the end of the period     4 years 3 months 18 days  
Vested and expected to vest     4 years 3 months 18 days  
Exercisable     3 years 6 months  
Additional disclosure        
Share based compensation expenses $ 135 $ 239 $ 409 834
Cash received from exercise of stock options   7   302
Intrinsic value   $ 1   $ 129
Weighted average grant date fair value of options exercised during the period (in dollars per share)   $ 15.20   $ 26.75
Unrecognized compensation cost $ 900   $ 900  
Weighted average period for recognizing compensation cost     2 years 3 months 18 days  
Weighted-average assumptions used to calculate estimated fair value of each stock option        
Risk-free interest rates (as a percent)     1.50% 1.80%
Expected lives (in years)     5 years 8 months 12 days 5 years 8 months 12 days
Expected volatility (as a percent)     59.00% 77.00%
Weighted average grant date fair value of options granted during the period (in dollars per share)     $ 6.84 $ 18.79