Fair Value of Financial Instruments - Balances and Levels of Assets Measured at Fair Value on Non-recurring Basis (Details) - Non-recurring Basis - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Financial assets:
Other real estate owned	$ 224	$ 2,497
Total collateral dependent loans	389	2,860
Residential real estate: | 1-to-4 family mortgage
Financial assets:
Total collateral dependent loans	389	366
Commercial real estate: | Non-owner occupied
Financial assets:
Total collateral dependent loans		2,494
Quoted prices in active markets for identical assets (liabilities) (level 1)
Financial assets:
Other real estate owned	0	0
Total collateral dependent loans	0	0
Quoted prices in active markets for identical assets (liabilities) (level 1) | Residential real estate: | 1-to-4 family mortgage
Financial assets:
Total collateral dependent loans	0	0
Quoted prices in active markets for identical assets (liabilities) (level 1) | Commercial real estate: | Non-owner occupied
Financial assets:
Total collateral dependent loans		0
Significant other observable inputs (level 2)
Financial assets:
Other real estate owned	0	0
Total collateral dependent loans	0	0
Significant other observable inputs (level 2) | Residential real estate: | 1-to-4 family mortgage
Financial assets:
Total collateral dependent loans	0	0
Significant other observable inputs (level 2) | Commercial real estate: | Non-owner occupied
Financial assets:
Total collateral dependent loans		0
Significant unobservable inputs (level 3)
Financial assets:
Other real estate owned	224	2,497
Total collateral dependent loans	389	2,860
Significant unobservable inputs (level 3) | Residential real estate: | 1-to-4 family mortgage
Financial assets:
Total collateral dependent loans	$ 389	366
Significant unobservable inputs (level 3) | Commercial real estate: | Non-owner occupied
Financial assets:
Total collateral dependent loans		$ 2,494