Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - RSU's (Details)

v3.3.1.900
Stock-Based Compensation - RSU's (Details) - USD ($)
 3 Months Ended 9 Months Ended
Dec. 31, 2015
Jun. 30, 2015
Dec. 31, 2014
Jun. 30, 2014
Dec. 31, 2015
Dec. 31, 2014
Mar. 31, 2015
Additional disclosure              
Share based compensation expenses $ 656,000   $ 571,000   $ 1,504,000 $ 1,795,000  
Number of preferred stock purchase right for each share of common stock         1    
Preferred stock, par value (in dollars per share) $ 0.001       $ 0.001   $ 0.001
Purchase price (in dollars per share) $ 10.00       $ 10.00    
Period following public announcement of beneficial ownership acquired by various persons resulting in rights becoming exercisable         10 days    
Beneficial ownership of common stock (as a percent)         20.00%    
Period following commencement of tender offer or exchange offer that would result in acquisition of beneficial ownership various persons resulting in rights becoming exercisable         10 days    
Series A Junior Participating Preferred Stock              
Additional disclosure              
Preferred stock conversion basis         0.01    
Restricted stock units              
Shares              
Nonvested, balance at the beginning of the period (in shares)   93,383     93,383    
Granted (in shares)         234,046    
Vested and issued (in shares)         (36,098)    
Forfeited (in shares)         (17,034)    
Nonvested, balance at the end of the period (in shares) 274,297       274,297    
Awards expected to vest (in shares) 274,286       274,286    
Weighted Average Grant-Date Fair Value              
Nonvested restricted stock units outstanding at the beginning of the period (in dollars per share)   $ 23.76     $ 23.76    
Granted (in dollars per share)         3.86    
Vested and issued (in dollars per share)         24.47    
Forfeited (in dollars per share)         21.39    
Nonvested restricted stock units outstanding at the end of the period (in dollars per share) $ 6.83       6.83    
Awards expected to vest (in dollars per share) $ 6.83       $ 6.83    
Additional disclosure              
Share based compensation expenses $ 204,000   303,000   $ 715,000 873,000  
Aggregate fair value of restricted stock units vested and issued 4,000   $ 28,000   344,000 $ 1,184,000  
Unrecognized compensation cost $ 1,300,000       $ 1,300,000    
Weighted average period for recognizing compensation cost         3 years    
Weighted average grant date fair value of options granted during the period (in dollars per share) $ 1.19   $ 19.60   $ 3.34 $ 27.43  
PRSU Program              
Additional disclosure              
Performance measurement period         3 years    
Vesting right percentage of awards that will vest after end of applicable performance measurement period         50.00%    
Vesting right percentage of awards that will vest one year after end of performance measurement period         50.00%    
Restricted Stock Awards              
Shares              
Granted (in shares) 255,912   1,814   263,594 3,956  
Additional disclosure              
Share based compensation expenses $ 317,000   $ 29,000   $ 380,000 $ 88,000  
Weighted average grant date fair value of options granted during the period (in dollars per share) $ 1.24   $ 16.20   $ 1.44 $ 22.28  
Chief Executive Officer | PRSU Program              
Shares              
Granted (in shares)   10,000   10,000      
Additional disclosure              
Share based compensation expenses         $ 0.0    
Weighted average grant date fair value of options granted during the period (in dollars per share)   $ 15.50   $ 31.20