Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Details)

v3.19.3
Stock-Based Compensation (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Stock-based compensation expense related to stock-based awards        
Total stock-based compensation expense $ 2,098 $ 2,995 $ 7,704 $ 5,647
Selling, general and administrative        
Stock-based compensation expense related to stock-based awards        
Total stock-based compensation expense 1,611 2,194 5,519 3,913
Research and development        
Stock-based compensation expense related to stock-based awards        
Total stock-based compensation expense $ 487 $ 801 $ 2,185 $ 1,734