Financial Instruments With Off-balance Sheet Risk - Financial Instruments With Credit Risk (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Ceded Credit Risk [Line Items]
Commitments to extend credit	$ 154,307	$ 126,981
Unused lines of credit
Ceded Credit Risk [Line Items]
Commitments to extend credit	100,986	68,341
Undisbursed construction loans
Ceded Credit Risk [Line Items]
Commitments to extend credit	12,000	18,594
Home equity lines of credit
Ceded Credit Risk [Line Items]
Commitments to extend credit	26,878	16,396
Future loan commitments
Ceded Credit Risk [Line Items]
Commitments to extend credit	14,365	23,486
Financial standby letters of credit
Ceded Credit Risk [Line Items]
Commitments to extend credit	$ 78	$ 164