Premises and Equipment - Schedule of Operating Lease Costs (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Abstract]
Operating lease cost	$ 597	$ 745	$ 844
Short-term lease cost	0
Variable lease cost	79	110	59
Total operating lease cost	$ 676	$ 855	$ 903