Quarterly report pursuant to Section 13 or 15(d)

Capital Stock Transactions - Narrative (Details)

v3.19.2
Capital Stock Transactions - Narrative (Details) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended
May 31, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Mar. 31, 2019
Class Of Stock [Line Items]          
Series A convertible preferred stock authorized (in shares)     2,000,000   2,000,000
Series A convertible preferred stock, par value (in dollars per share)     $ 0.0001   $ 0.0001
Series A convertible preferred stock issued (in shares)     100,000   100,000
Total unrecognized stock base compensation expense   $ 2,747 $ 3,472 $ 2,747  
Unvested stock options, weighted average period     2 years 4 months 15 days 2 years 3 months 23 days  
Equity Option          
Class Of Stock [Line Items]          
Options exercised (in shares)     616,208    
Restricted Stock          
Class Of Stock [Line Items]          
Vesting period 3 years 3 years      
Restricted Stock | Minimum          
Class Of Stock [Line Items]          
Vesting period     3 months    
Restricted Stock | Maximum          
Class Of Stock [Line Items]          
Vesting period     2 years    
Non Vested Restricted Stock          
Class Of Stock [Line Items]          
Total unrecognized stock base compensation expense     $ 37    
Unvested stock options, weighted average period     1 month 1 day    
Time Condition RSAs          
Class Of Stock [Line Items]          
Compensation expense     $ 106 $ 72  
Convertible Preferred Stock          
Class Of Stock [Line Items]          
Series A convertible preferred stock authorized (in shares)     2,000,000    
Series A convertible preferred stock, par value (in dollars per share)     $ 0.0001    
Series A convertible preferred stock issued (in shares)     100,000    
Aggregate shares upon conversion (in shares)     20,000    
Liquidation preference (in dollars per share)         $ 10