Segment Reporting - Segment information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($) segment	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)
Segment Reporting Information [Line Items]
Number of Reportable Segments | segment	2
Revenues
Interest income	$ 9,335	$ 7,583
Mortgage banking income, net	850	478
Other revenues	754	821
Total revenues	10,939	8,882
Expenses
Provision for credit losses	150
Interest expense	2,939	1,218
Salaries and benefits	3,464	3,448
Other expenses	2,165	2,351
Total operating expenses	8,718	7,017
Income (loss) before income taxes	2,221	1,865
Income tax expense (benefit)	449	325
Net income (loss)	1,772	1,540
Total assets	746,872	734,797	$ 736,616
Eliminations [Member]
Revenues
Mortgage banking income, net	(59)	(60)
Other revenues	(41)
Total revenues	(100)	(60)
Expenses
Other expenses	(100)	(60)
Total operating expenses	(100)	(60)
Total assets	(25,910)	(32,483)
Commercial Banking | Operating Segments [Member]
Revenues
Interest income	9,243	7,543
Other revenues	795	821
Total revenues	10,038	8,364
Expenses
Provision for credit losses	150
Interest expense	2,939	1,218
Salaries and benefits	2,785	2,742
Other expenses	2,030	2,137
Total operating expenses	7,904	6,097
Income (loss) before income taxes	2,134	2,267
Income tax expense (benefit)	431	409
Net income (loss)	1,703	1,858
Total assets	756,005	749,402
Mortgage Banking | Operating Segments [Member]
Revenues
Interest income	92	40
Mortgage banking income, net	909	538
Total revenues	1,001	578
Expenses
Salaries and benefits	679	706
Other expenses	235	274
Total operating expenses	914	980
Income (loss) before income taxes	87	(402)
Income tax expense (benefit)	18	(84)
Net income (loss)	69	(318)
Total assets	$ 16,777	$ 17,878