Operating Lease - Summary of Information Related to Lease (Detail) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Assets:
Operating lease right-of-use assets	$ 1,573	$ 557
Liabilities:
Operating lease liabilities, current	374	131
Operating lease liabilities, non-current	1,347	474
Total operating lease liabilities	$ 1,721	$ 605