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Leases - Schedule of Leases (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Assets
Operating lease assets	$ 513		$ 513		$ 792
Total leased assets	513		513		792
Liabilities
Current - Operating	563		563		852
Noncurrent - Operating	11		11		155
Total leased liabilities	574		574		$ 1,007
Lease Cost
Net lease cost	$ 104	$ 84	$ 251	$ 170
Lease Term and Discount Rate
Weighted-average remaining lease term (years)	1 year 1 month 6 days		1 year 1 month 6 days		2 years 3 months 18 days
Weighted-average discount rate	6.70%		6.70%		6.00%
SG&A and R&D Expenses [Member]
Lease Cost
Operating lease cost	$ 242	191	$ 507	381
Sublease income	(141)	(110)	(262)	(218)
SG&A Expenses [Member]
Lease Cost
Short term lease cost	$ 3	$ 3	$ 6	$ 7

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Amount of lease cost recognized by lessee for lease contract.

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