Income Taxes - Summary of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Deferred tax assets
Lease liability	$ 343
Allowance for credit losses	7,711	$ 6,106
Deferred compensation	1,155	1,143
Unfunded commitment liability	819
Intangible assets	103	154
Net operating loss carryforward	6	699
Deferred loan fees	576	347
Unrealized loss on securities available for sale	11,633	14,218
Unrealized loss on securities purchased	1,976	1,966
Other	923	295
Deferred tax asset	25,245	24,928
Deferred tax liabilities
Tax depreciation in excess of book depreciation	(2,625)	(2,124)
Discount accretion on securities	(502)	(244)
FHLB stock dividends	(223)	(822)
Purchase accounting adjustments	(1,841)	(2,220)
Right of use asset	(343)
Prepaids	(314)	(334)
Other	(1,040)	(735)
Deferred tax liability	(6,888)	(6,479)
Net deferred tax asset	$ 18,357	$ 18,449