Income Taxes - Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Amounts
Income tax at statutory rates	$ 6,124	$ 7,762	$ 7,997
State income taxes	82	536	1,340
Tax-exempt interest income	(582)	(427)	(396)
Excess compensation	38		571
Income from bank-owned life insurance	(104)	(130)	(110)
Investments in qualified housing projects	(75)	(56)	(48)
Share-based compensation	(114)	(37)	(83)
Contribution of real property			(107)
Other	49	(53)	(205)
Income tax expense	$ 5,418	$ 7,595	$ 8,959
Percent of Pre-tax Income
Income tax at statutory rates (as a percent)	21.00%	21.00%	21.00%
State income taxes (as a percent)	0.30%	1.50%	3.50%
Tax-exempt interest income (as a percent)	(2.00%)	(1.10%)	(1.00%)
Excess compensation (as a percent)	0.10%		1.50%
Income from bank-owned life insurance (as a percent)	(0.40%)	(0.40%)	(0.30%)
Investments in qualified housing projects (as a percent)	(0.30%)	(0.20%)	(0.10%)
Share-based compensation (as a percent)	(0.40%)	(0.10%)	(0.20%)
Contribution of real property (as a percent)			(0.30%)
Other	0.20%	(0.10%)	(0.50%)
Income tax expense (as a percent)	18.50%	20.60%	23.60%