Premises and Equipment - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 492	$ 600
Remaining lease term	3 years 1 month 6 days
Lessee, Operating Lease, Existence of Option to Extend [true false]	true
Operating lease, extension option term	3 years
Right of use asset	$ 282
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other Assets
Right of use liability	$ 282
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Other Liabilities