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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	$ 7,612	$ 14,317	$ 4,725
State income taxes, net of federal tax effect	625	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	500	(64)	(31)
Income Tax Expense Benefit Continuing And Discontinuing	$ 8,333	$ 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	(0.30%)	(0.20%)	(0.10%)
Income from life insurance	(0.80%)	(0.30%)	(0.40%)
Merger-related expenses	0.00%	0.40%	0.80%
Other permanent differences	1.40%	(0.10%)	(0.10%)
Provision for income taxes	23.00%	23.00%	21.40%

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to life insurance expense.

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