Stock-Based Compensation - Stock-based compensation expense (Details) - USD ($) $ in Thousands |
3 Months Ended | |
---|---|---|
Mar. 31, 2023 |
Mar. 31, 2022 |
|
Stock-based compensation expense | $ 597 | $ 774 |
Deferred stock units | ||
Stock-based compensation expense | 357 | 577 |
Restricted stock units | ||
Stock-based compensation expense | 153 | 48 |
Stock options | ||
Stock-based compensation expense | 120 | $ 149 |
Performance stock units | ||
Stock-based compensation expense | $ (33) |