Income Taxes - Reconciliation of income tax expense computed at statutory rate (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Income Taxes
Income tax expense at federal statutory rate	$ 417	$ 650
(Decrease) increase resulting from:
Tax-exempt income	(212)	(181)
Bank owned life insurance	(33)	(33)
State income taxes, net of Federal income tax benefit	68	133
Other		8
Total income tax expense	$ 240	$ 577