Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - RSU's and PRSU's (Details)

v3.7.0.1
Stock-Based Compensation - RSU's and PRSU's (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Additional disclosure    
Share based compensation expenses $ 154 $ 238
Restricted stock units    
Weighted Average Grant-Date Fair Value    
Granted (in dollars per share) $ 0.67  
Additional disclosure    
Assumed forfeiture (in shares) 0  
Share based compensation expenses $ 139 188
Aggregate fair value of restricted stock units vested and issued 7 $ 22
Unrecognized compensation cost $ 400  
Restricted stock units | Awards vesting over four years with one-fourth units vesting one year after the issuance date    
Additional disclosure    
Vesting period 4 years  
Awards vesting percentage 25.00%  
Vesting period of awards after issuance date 1 year  
PRSU Program    
Shares    
Nonvested, balance at the beginning of the period (in shares) 316,709  
Granted (in shares) 29,540  
Vested and issued (in shares) (9,191)  
Forfeited (in shares) (2,255)  
Nonvested, balance at the end of the period (in shares) 334,803  
Awards expected to vest (in shares) 334,780  
Weighted Average Grant-Date Fair Value    
Nonvested restricted stock units outstanding at the beginning of the period (in dollars per share) $ 2.85  
Granted (in dollars per share) 0.67  
Vested and issued (in dollars per share) 20.22  
Forfeited (in dollars per share) 2.97  
Nonvested restricted stock units outstanding at the end of the period (in dollars per share) 2.18  
Awards expected to vest (in dollars per share) $ 2.18  
Restricted Stock Awards    
Shares    
Granted (in shares) 2,016 32,201
Weighted Average Grant-Date Fair Value    
Granted (in dollars per share) $ 0.62 $ 1.57
Additional disclosure    
Share based compensation expenses $ 7 $ 50
Weighted average period for recognizing compensation cost 1 year 2 months 12 days  
Non-employee director | Restricted stock units    
Additional disclosure    
Vesting period 1 year