Stock-Based Compensation - Summary of Unvested Options (Details) - $ / shares |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Options | |||
| Unvested, beginning balance (in shares) | 59,244 | ||
| Granted (in shares) | 17,580 | 24,208 | 23,218 |
| Vested (in shares) | 17,528 | ||
| Forfeited (in shares) | 607 | ||
| Unvested, ending balance (in shares) | 58,689 | 59,244 | |
| Weighted Average Grant Date Fair Value | |||
| Unvested, beginning balance (in usd per share) | $ 9.27 | ||
| Granted (in usd per share) | 11.95 | ||
| Vested (in usd per share) | 9.73 | ||
| Forfeited (in usd per share) | 9.63 | ||
| Unvested, ending balance (in usd per share) | $ 9.93 | $ 9.27 | |