Quarterly report pursuant to Section 13 or 15(d)

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

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Stock-Based Compensation - RSU's and PRSU's (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Additional disclosure        
Stock-based compensation expense $ 303 $ 292 $ 669 $ 743
Restricted stock units and performance restricted stock units        
Shares        
Nonvested, balance at the beginning of the period (in shares)     221,778  
Granted (in shares)     149,370  
Vested and issued (in shares)     (47,753)  
Forfeited (in shares)     (52,022)  
Nonvested, balance at the end of the period (in shares) 271,373   271,373  
Awards expected to vest (in shares) 271,373   271,373  
Weighted Average Grant-Date Fair Value        
Nonvested restricted stock units outstanding at the beginning of the period (in dollars per share)     $ 10.20  
Granted (in dollars per share)     5.95  
Vested and issued (in dollars per share)     10.91  
Forfeited (in dollars per share)     8.34  
Nonvested restricted stock units outstanding at the end of the period (in dollars per share) $ 8.10   8.10  
Awards expected to vest (in dollars per share) $ 8.10   $ 8.10  
Restricted stock units        
Additional disclosure        
Stock-based compensation expense $ 303 292 $ 669 743
Aggregate fair value of restricted stock units vested and issued 54 $ 91 235 $ 614
Unrecognized compensation cost $ 1,100   $ 1,100  
Weighted average period for recognizing compensation cost     1 year 3 months 18 days  
Weighted Average Grant-Date Fair Value        
Granted (in dollars per share) $ 3.21 $ 8.20 $ 5.95 $ 11.60
Restricted stock units | Awards vesting on the second year anniversary        
Additional disclosure        
Vesting period     2 years  
Awards vesting percentage     100.00%  
Vesting period of awards after issuance date     2 years  
Restricted stock units | Awards vesting one-third annually        
Additional disclosure        
Vesting period     3 years  
Awards vesting percentage     33.33%  
Vesting period of awards after issuance date     1 year  
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  
Performance Restricted Stock Units        
Additional disclosure        
Performance goal payment as a percentage of target 50.00%   50.00%  
Weighted Average Grant-Date Fair Value        
Granted (in dollars per share)     $ 8.90  
Performance Restricted Stock Units | Maximum        
Additional disclosure        
Performance goal payment as a percentage of target 150.00%   150.00%  
Performance Restricted Stock Units | Three-year performance measurement period        
Additional disclosure        
Performance measurement period     3 years  
Shares        
Granted (in shares)     30,139  
PRSU Program        
Additional disclosure        
Stock-based compensation expense $ 100   $ 100  
PRSU Program | Two-year performance measurement period        
Additional disclosure        
Performance measurement period     2 years  
PRSU Program | Three-year performance measurement period        
Additional disclosure        
Performance measurement period     3 years  
Restricted Stock Awards        
Additional disclosure        
Stock-based compensation expense $ 0 $ 0 $ 0 $ 0
Shares        
Granted (in shares) 0 0 0 0
Non-employee director | Restricted stock units        
Additional disclosure        
Vesting period     1 year