Quarterly report pursuant to Section 13 or 15(d)

Capital Stock Transactions - Narrative (Details)

v3.20.4
Capital Stock Transactions - Narrative (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended
Aug. 31, 2020
Jul. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Mar. 31, 2020
Class Of Stock [Line Items]              
Series A convertible preferred stock, shares authorized     2,000,000   2,000,000   2,000,000
Series A convertible preferred stock, par value (in dollars per share)     $ 0.0001   $ 0.0001   $ 0.0001
Series A convertible preferred stock, shares issued     100,000   100,000   100,000
Unrecognized stock base compensation expense     $ 6,495 $ 3,518 $ 6,495 $ 3,518  
Unvested stock options, weighted average period         2 years 1 month 13 days 2 years 1 month 28 days  
Equity Option              
Class Of Stock [Line Items]              
Options exercised (in shares)         1,979,387    
Restricted Stock              
Class Of Stock [Line Items]              
Vesting period 1 year 1 year          
Awarded (in shares) 45,110 75,494          
Fair value of shares issued $ 626 $ 421          
Restricted Stock | Minimum              
Class Of Stock [Line Items]              
Vesting period         3 months    
Restricted Stock | Maximum              
Class Of Stock [Line Items]              
Vesting period         2 years    
Time Condition RSAs              
Class Of Stock [Line Items]              
Compensation expense     157 $ 105 $ 419 $ 318  
Non Vested Restricted Stock              
Class Of Stock [Line Items]              
Awarded (in shares)         45,110    
Unrecognized stock base compensation expense     $ 365   $ 365    
Unvested stock options, weighted average period         6 months 29 days    
Convertible Preferred Stock              
Class Of Stock [Line Items]              
Series A convertible preferred stock, shares authorized     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, shares issued     100,000   100,000    
Aggregate shares upon conversion (in shares)         20,000    
Liquidation preference (in dollars per share)     $ 10   $ 10