Income Taxes - Summary Of Company's Deferred Tax Assets, Net Of Deferred Liabilities, Included In Other Assets In The Consolidated Financial Statements (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Components of Deferred Tax Assets [Abstract]
Allowance for loan losses	$ 4,163	$ 4,172
Lease liability	2,428	3,079
Accrued expenses	1,666	1,422
Organization costs	14	41
Share-based compensation	391	399
Deferred compensation	1,077	823
Net operating loss carryforwards	1,166	1,246
Loan discounts	34	63
Other	1,311	282
Total deferred tax assets	12,250	11,527
Components of Deferred Tax Liabilities [Abstract]
Deferred loan origination costs	(1,592)	(2,631)
Right of use asset	(1,903)	(2,460)
Core deposit intangible	(48)	(60)
Other	(92)	(327)
Total deferred tax liabilities	(3,635)	(5,478)
Net deferred tax assets	$ 8,615	$ 6,049