Quarterly report pursuant to Section 13 or 15(d)

STOCK-BASED COMPENSATION - Share-based Compensation Expense (Details)

v3.20.2
STOCK-BASED COMPENSATION - Share-based Compensation Expense (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Share-based compensation expense $ 553 $ 324 $ 1,409 $ 1,007
Research and development        
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Share-based compensation expense 98 81 270 237
General and administrative        
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Share-based compensation expense $ 455 $ 243 $ 1,139 $ 770