Financial Instruments With Off-balance Sheet Risk - Financial Instruments With Credit Risk (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Ceded Credit Risk [Line Items]
Commitments to extend credit	$ 131,715	$ 154,307
Unused lines of credit
Ceded Credit Risk [Line Items]
Commitments to extend credit	97,432	100,986
Undisbursed construction loans
Ceded Credit Risk [Line Items]
Commitments to extend credit	4,849	12,000
Home equity lines of credit
Ceded Credit Risk [Line Items]
Commitments to extend credit	29,134	26,878
Future loan commitments
Ceded Credit Risk [Line Items]
Commitments to extend credit	300	14,365
Financial standby letters of credit
Ceded Credit Risk [Line Items]
Commitments to extend credit	$ 0	$ 78