Revenue - Components of Non-interest Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Service charges on deposit accounts and Other service charges and fees
Bank owned life insurance	$ 23	$ 255	$ 224	$ 445
Losses on sale of available-for-sale securities	(17,114)		(17,316)
Gain on sale of government guaranteed loans	27		50
Non-qualified deferred compensation plan asset gains (losses), net	(60)	(107)	112	(498)
Other operating income	10	1	124	6
Total non-interest income (loss)	(16,815)	450	(15,564)	973
Overdrawn account fees
Service charges on deposit accounts and Other service charges and fees
Non-interest income	20	19	55	60
Account service fees
Service charges on deposit accounts and Other service charges and fees
Non-interest income	65	60	184	180
Interchange income
Service charges on deposit accounts and Other service charges and fees
Non-interest income	101	108	304	306
Other Charges and Fees
Service charges on deposit accounts and Other service charges and fees
Non-interest income	59	67	373	163
Premises And Equipment
Service charges on deposit accounts and Other service charges and fees
Non-interest income			16	(1)
Insurance Commissions
Service charges on deposit accounts and Other service charges and fees
Non-interest income	$ 54	$ 47	$ 310	$ 312