Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Details)

v3.20.1
Stock-Based Compensation (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Stock-based compensation expense related to stock-based awards    
Total stock-based compensation expense $ 2,024 $ 2,953
Selling, general and administrative    
Stock-based compensation expense related to stock-based awards    
Total stock-based compensation expense 1,330 2,166
Research and development    
Stock-based compensation expense related to stock-based awards    
Total stock-based compensation expense $ 694 $ 787