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Restricted Stock Plan - Additional Information (Details) - USD ($) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2018 | Dec. 31, 2008 | Dec. 31, 2022 | Dec. 31, 2021
Restricted Stock Plan |  |  |  |
Share based compensation arrangement by share based payment award contractual period |  |  | 9 years 6 months |
Maximum number of shares shares base stock option award granted to per employee | 25,000 | 25,000 |  |
Stock option awards vest period |  |  | 9 years 6 months |
Allocated share-based compensation expense |  |  | $ 1,006,000 | $ 414,000
Employee service share-based compensation, tax benefit from compensation expense |  |  | 211,000 | 65,000
Total unrecognized compensation cost related to nonvested share-based compensation arrangements granted under the Plan |  |  | $ 1,549,000 | $ 2,890,000
Total unrecognized compensation cost related to nonvested share-based compensation cost is expected to be recognized over a weighted-average period |  |  | 4 years 1 month 6 days |
Restricted Stock |  |  |  |
Restricted Stock Plan |  |  |  |
Share based compensation arrangement by share based payment award contractual period |  |  | 9 years 6 months |
Stock Incentive Plan |  |  |  |
Restricted Stock Plan |  |  |  |
Number of shares authorized under plan | 500,000 | 500,000 |  |
Number of shares issued under plan |  |  | 142,500 |

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