Quarterly report pursuant to Section 13 or 15(d)

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

v3.10.0.1
Stock-Based Compensation - RSU's and PRSU's (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended
Aug. 31, 2017
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2017
Jul. 31, 2017
Additional disclosure          
Stock-based compensation expense     $ 227 $ 154  
Employee Stock Purchase Plan          
Weighted Average Grant-Date Fair Value          
Number of shares available for future grant     570,000   70,000
Increase in common stock available under the plan 500,000        
Restricted stock units and performance restricted stock units          
Shares          
Nonvested, balance at the beginning of the period (in shares)     2,011,611    
Granted (in shares)     309,202    
Vested and issued (in shares)     (4,688)    
Forfeited (in shares)     (10,162)    
Nonvested, balance at the end of the period (in shares)     2,305,963    
Awards expected to vest (in shares)     2,305,940    
Weighted Average Grant-Date Fair Value          
Nonvested restricted stock units outstanding at the beginning of the period (in dollars per share)     $ 0.90    
Granted (in dollars per share)     1.59    
Vested and issued (in dollars per share)     21.46    
Forfeited (in dollars per share)     1.02    
Nonvested restricted stock units outstanding at the end of the period (in dollars per share)     0.95    
Awards expected to vest (in dollars per share)     $ 0.95    
Restricted stock units          
Additional disclosure          
Stock-based compensation expense     $ 227 139  
Aggregate fair value of restricted stock units vested and issued     7 $ 7  
Unrecognized compensation cost     $ 1,200    
Weighted average period for recognizing compensation cost     2 years    
Weighted Average Grant-Date Fair Value          
Granted (in dollars per share)     $ 1.59 $ 0.67  
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 one-fourth annually          
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%    
Weighted Average Grant-Date Fair Value          
Granted (in dollars per share)     $ 1.59    
Performance restricted stock units | Maximum          
Additional disclosure          
Performance goal payment as a percentage of target     150.00%    
Performance restricted stock units | Three-year performance measurement period          
Additional disclosure          
Performance measurement period     3 years    
Shares          
Granted (in shares)     147,327    
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       $ 7  
Shares          
Granted (in shares)   0   2,016  
Weighted Average Grant-Date Fair Value          
Granted (in dollars per share)       $ 0.62  
Non-employee director | Restricted stock units          
Additional disclosure          
Vesting period     1 year    
President and Chief Executive officer | Restricted stock units | Two-year performance measurement period          
Additional disclosure          
Awards vesting percentage     100.00%    
Vesting period of awards after issuance date     2 years    
President and Chief Executive officer | Performance restricted stock units | Two-year performance measurement period          
Additional disclosure          
Performance measurement period     2 years    
Shares          
Granted (in shares)     150,000