Loans and Allowance For Credit Losses - Summary of Outstanding Loans (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable Gross	$ 1,520,891	$ 1,559,533
Deferred loan origination costs, net	1,223	1,107
Allowance for credit losses	(15,981)	(16,028)	$ (15,382)	$ (17,005)
Total loans, net	1,506,133	1,544,612
Commercial And Industrial [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable Gross	610,459	626,615
Allowance for credit losses	(11,175)	(10,853)	(10,719)	(10,620)
Real estate—other [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable Gross	834,143	849,306
Real estate - construction and land [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable Gross	35,886	44,186
Allowance for credit losses	(542)	(492)	(743)	(884)
SBA [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable Gross	3,919	4,032
Allowance for credit losses	(205)	(521)	(42)	(132)
Other Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable Gross	36,484	35,394
Allowance for credit losses	$ (961)	$ (944)	$ (935)	$ (47)

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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