Leases - Other Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Right of Use Assets:
Operating lease ROU asset (included within Lease right-of-use asset)	$ 2,779	$ 1,782
Weighted average remaining lease term (in years):
Operating leases	5 years 3 months 10 days	7 years 5 months 8 days
Weighted average discount rate:
Operating leases	3.40%	2.80%
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 572	$ 271
Right-of-Use Asset Obtained In Exchange for Lease Liability:
ROU assets obtained in exchange for operating lease liabilities	$ 1,687	$ 2,062	$ 0