Income Taxes - Reconciliation of income tax expense computed at statutory rate (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Income Taxes
Income tax expense at federal statutory rate	$ 315	$ 417
(Decrease) increase resulting from:
Tax-exempt income	(212)	(212)
Bank owned life insurance	(34)	(33)
State income taxes, net of Federal income tax benefit	3	68
Total income tax expense	$ 72	$ 240