Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Details)

v3.20.2
Stock-Based Compensation (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Stock-based compensation expense related to stock-based awards        
Total stock-based compensation expense $ 1,884 $ 2,098 $ 5,665 $ 7,704
Selling, general and administrative        
Stock-based compensation expense related to stock-based awards        
Total stock-based compensation expense 1,352 1,611 3,981 5,519
Research and development        
Stock-based compensation expense related to stock-based awards        
Total stock-based compensation expense $ 532 $ 487 $ 1,684 $ 2,185