Income Taxes - Reconciliation of income tax expense at the statutory rate to the Bank's actual income tax expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Income Taxes
Computed at the statutory rate (21%)	$ 232	$ 262
Increase (decrease) resulting from
Tax exempt interest	(102)	(84)
State tax expense	24	81
Increase in cash surrender value	(21)	(20)
Other	69	1
Income tax expense	$ 202	$ 240
Statutory rate (in percent)	(21.00%)	(21.00%)