Commitments and Contingencies - Summary of Lease Costs Recognized Under ASC 842 and Other Information Pertaining to Operating Leases (Detail) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021
Lease cost
Operating lease cost	[1]	$ 125	$ 93
Total lease cost	[1]	125	93
Other Information
Cash paid for amounts included in the measurement of lease liabilities		$ 143	$ 82
Weighted average remaining lease term (in years)		3 months 18 days	1 year 3 months 18 days
Weighted average discount rate		12.00%	12.00%

[1] Short-term lease costs and variable lease costs incurred by the Company for the twelve months ended December 31, 2022 and 2021 were not material.