Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation - Stock-based Compensation Expense (Details)

v3.21.2
Stock-based Compensation - Stock-based Compensation Expense (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Share-based compensation expense        
Stock-based compensation expense $ 768 $ 773 $ 3,666 $ 2,561
General and administrative        
Share-based compensation expense        
Stock-based compensation expense $ 768 $ 773 $ 3,666 $ 2,561