Leases - Summarizes of Right-of-use Assets and Liabilities for Operating and Finance Leases (Detail) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Operating leases:
ROU Assets	$ 1,597	$ 2,204
Lease liabilities - operating leases	$ 1,539	$ 2,203
Finance leases:
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Property, Plant and Equipment, Net	Property, Plant and Equipment, Net
ROU Assets	$ 80	$ 86
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Long Term Debt And Finance Lease Obligations Excluding Line Of Credit	Long Term Debt And Finance Lease Obligations Excluding Line Of Credit
Liabilities	$ 17	$ 31