Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Details)

v3.19.2
Stock-Based Compensation (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Stock-based compensation expense related to stock-based awards        
Total stock-based compensation expense $ 2,653 $ 1,112 $ 5,606 $ 2,652
Selling, general and administrative        
Stock-based compensation expense related to stock-based awards        
Total stock-based compensation expense 1,742 779 3,908 1,719
Research and development        
Stock-based compensation expense related to stock-based awards        
Total stock-based compensation expense $ 911 $ 333 $ 1,698 $ 933