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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Loans Receivable - Summary of Portfolio Segments and Classes of Loans (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, Gross	$ 2,241,359	$ 927,615
Deferred costs (fees)	174	(256)
Allowance for loan losses	(23,767)	(4,666)	$ (3,152)
Net loans	2,217,766	923,205
Agriculture And Farmland [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, Gross	65,861	55,746
Allowance for loan losses		(279)
Commercial Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, Gross	178,483	57,713
Commercial & industrial loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, Gross	238,343	104,755
Multifamily [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, Gross	180,788	105,390
Allowance for loan losses		(480)
Owner occupied [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, Gross	501,732	139,554
Allowance for loan losses		(635)
Non-owner Occupied [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, Gross	580,972	245,274
Allowance for loan losses		(1,116)
First Liens [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, Gross	402,433	168,084
Allowance for loan losses		(1,029)
Second Liens and Lines of Credit [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, Gross	70,747	35,576
Allowance for loan losses		(218)
Consumer and Other Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, Gross	16,756	10,057
Municipal Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, Gross	$ 5,244	5,466
Allowance for loan losses		$ (12)