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, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Income tax at federal statutory rate	$ 14,317	$ 4,725
State income taxes, net of federal tax effect	1,499	34
Tax-exempt interest income	105	20
Income from life insurance	196	82
Merger-related expenses	250	174
Other permanent differences	(68)	(31)
Provision for income taxes	$ 15,697	$ 4,800
Income tax at federal statutory rate	21.00%	21.00%
State income taxes, net of federal tax effect	2.20%	0.20%
Tax-exempt interest income	0.20%	0.10%
Income from life insurance	(0.30%)	(0.40%)
Merger-related expenses	0.40%	0.80%
Other permanent differences	(0.10%)	(0.10%)
Provision for income taxes	23.10%	21.40%