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Income Taxes - Schedule of Difference Between Provision for Income Taxes and Amounts Computed by Applying Statutory Federal Income Tax Rate to Income Before Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Income tax at federal statutory rate	$ 4,750	$ 14,317	$ 4,725
State income taxes, net of federal tax effect	388	1,499	34
Tax-exempt interest income	(121)	(105)	(20)
Income from life insurance	(283)	(196)	(82)
Merger-related expenses	0	250	174
Other permanent differences	554	(64)	(31)
Income Tax Expense Benefit Continuing And Discontinuing	$ 5,288	$ 15,701	$ 4,800
Income tax at federal statutory rate	21.00%	21.00%	21.00%
State income taxes, net of federal tax effect	1.70%	2.20%	0.20%
Tax-exempt interest income	(0.50%)	(0.20%)	(0.10%)
Income from life insurance	(1.30%)	(0.30%)	(0.40%)
Merger-related expenses	0.00%	0.40%	0.80%
Other permanent differences	2.40%	(0.10%)	(0.10%)
Provision for income taxes	23.30%	23.00%	21.40%

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