Fair Value Measurements - Summary of Carrying Amounts and Estimated Fair Values of Financial Instruments (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Financial assets
Cash and cash equivalents	$ 203,098	$ 212,354
Available for sale	31,078	44,560
Held to maturity	84,713	90,030
Loans, net	1,438,856	1,470,794
Accrued interest receivable	10,120	8,847
Financial liabilities
Deposits	1,639,824	1,626,245
Other borrowings		75,000
Subordinated debt	50,196	50,248
Accrued interest payable	3,216	3,292
Carrying Amount [Member]
Financial assets
Cash and cash equivalents	203,098	212,354
Available for sale	31,078	44,560
Held to maturity	95,840	100,841
Loans, net	1,506,133	1,544,612
Accrued interest receivable	10,120	8,847
Financial liabilities
Deposits	1,639,516	1,625,244
Other borrowings		75,000
Subordinated debt	54,326	54,291
Accrued interest payable	3,216	3,292
Level 1 [Member]
Financial assets
Cash and cash equivalents	203,098	212,354
Financial liabilities
Deposits	1,311,636	1,315,032
Level 2 [Member]
Financial assets
Available for sale	31,078	44,560
Held to maturity	77,361	82,806
Accrued interest receivable	1,018	982
Financial liabilities
Deposits	328,188	311,213
Accrued interest payable	3,114	2,593
Level 3 [Member]
Financial assets
Available for sale	0	0
Held to maturity	7,352	7,224
Loans, net	1,438,856	1,470,794
Accrued interest receivable	9,102	7,865
Financial liabilities
Other borrowings		75,000
Subordinated debt	50,196	50,248
Accrued interest payable	$ 102	$ 699