Stock Options - Additional Information (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
|
| Stock Based Compensation | ||
| Compensation costs | $ 182 | |
| Cash received from options exercised | $ 106 | 23 |
| Future compensation costs related to the unvested portion of stock options | $ 593 | |