Quarterly report pursuant to Section 13 or 15(d)

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

v3.19.3
Stock-Based Compensation - RSU's and PRSU's (Details) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended
Aug. 31, 2017
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Additional disclosure          
Stock-based compensation expense   $ 104,000 $ 224,000 $ 366,000 $ 451,000
Employee Stock Purchase Plan          
Weighted Average Grant-Date Fair Value          
Number of shares of common stock reserved for issuance 7,000 57,000   57,000  
Increase in common stock available under the plan 50,000        
Number of shares available for future grant   49,270   49,270  
Number of shares issued         522
Maximum amount that can be contributed by the employee       $ 25,000  
Maximum percentage of regular compensation that can be contributed by the employee       15.00%  
Percentage of the fair market value of common stock on the last day of the purchase right period       95.00%  
Restricted stock units and performance restricted stock units          
Shares          
Nonvested, balance at the beginning of the period (in shares)       221,744  
Granted (in shares)       136,383  
Vested and issued (in shares)       (27,795)  
Forfeited (in shares)       (51,577)  
Nonvested, balance at the end of the period (in shares)   278,755   278,755  
Awards expected to vest (in shares)   278,753   278,753  
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)       6.20  
Vested and issued (in dollars per share)       12.30  
Forfeited (in dollars per share)       8.30  
Nonvested restricted stock units outstanding at the end of the period (in dollars per share)   $ 8.40   8.40  
Awards expected to vest (in dollars per share)   $ 8.40   $ 8.40  
Restricted stock units          
Additional disclosure          
Stock-based compensation expense   $ 104,000 224,000 $ 366,000 $ 451,000
Aggregate fair value of restricted stock units vested and issued   179,000 $ 516,000 181,000 $ 523,000
Unrecognized compensation cost   $ 1,300,000   $ 1,300,000  
Weighted average period for recognizing compensation cost       1 year 7 months 6 days  
Weighted Average Grant-Date Fair Value          
Granted (in dollars per share)   $ 6.80 $ 11.40 $ 8.20 $ 13.60
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          
Stock-based compensation expense       $ 0  
Aggregate fair value of restricted stock units vested and issued       $ 0  
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)       30,136  
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