Commitments and Contingencies - Commitments to Extend Credit and Letters of Credit (Details) $ in Thousands	Jun. 23, 2023 security	Sep. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)
Robert C. Ashe Litigation
Loan Commitments and Letters of Credit [Line Items]
Number of new claims filed | security	2
Commitments to Extend Credit
Loan Commitments and Letters of Credit [Line Items]
Notional Amount		$ 464,661	$ 424,197	$ 440,167
Fair Value		0	0	0
Standby Letters of Credit
Loan Commitments and Letters of Credit [Line Items]
Notional Amount		4,201	3,627	3,445
Fair Value		$ 10	$ 2	$ 0
Minimum | Standby Letters of Credit
Loan Commitments and Letters of Credit [Line Items]
Loan commitments, fixed fee percent		1.00%
Maximum | Standby Letters of Credit
Loan Commitments and Letters of Credit [Line Items]
Loan commitments, fixed fee percent		3.00%