Loans - Schedule of Components of Provision For Credit Losses (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Loans and Leases Receivable Disclosure [Line Items]
Provision for credit losses		$ 75	$ 75	$ 150	$ 150
Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Provision for credit losses		91	(58)	23	17
Unfunded Loan Commitments [Member]
Loans and Leases Receivable Disclosure [Line Items]
Provision for credit losses	[1]	$ (16)	$ 133	$ 127	$ 133

[1] The allowance for credit losses for unfunded loan commitments is included in other liabilities on the Company's Consolidated Balance Sheets.