Loans Receivable - Summary of Portfolio Segments and Classes of Loans (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Loans and Leases Receivable Disclosure [Line Items]
Loans receivable	$ 2,245,461	$ 2,241,359
Deferred costs (fees)	356	174
Allowance for credit losses	(23,842)	(23,767)
Net loans	2,221,975	2,217,766
Agriculture and Farmland Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans receivable	67,359	65,861
Construction Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans receivable	194,391	178,483
Commercial & Industrial Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans receivable	218,724	238,343
Multifamily [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans receivable	190,146	180,788
Owner Occupied [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans receivable	489,467	501,732
Non-owner Occupied [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans receivable	589,731	580,972
First Liens [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans receivable	403,300	402,433
Second Liens and Lines of Credit [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans receivable	71,060	70,747
Consumer and Other Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans receivable	16,810	16,756
Municipal Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans receivable	$ 4,473	$ 5,244