Quarterly report pursuant to Section 13 or 15(d)

Equity - Components of Stock Based Compensation (Details)

v3.20.2
Equity - Components of Stock Based Compensation (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Class of Stock [Line Items]        
Share-based compensation expense $ 408 $ 318 $ 805 $ 666
General and administrative        
Class of Stock [Line Items]        
Share-based compensation expense 329 271 664 573
Research and development        
Class of Stock [Line Items]        
Share-based compensation expense $ 79 $ 47 $ 141 $ 93