Leases - Schedule of Leases (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
Assets
Operating lease assets	$ 137	$ 792
Total leased assets	137	792
Liabilities
Current - Operating	155	852
Noncurrent - Operating	0	155
Total leased liabilities	155	1,007
Lease Cost
Net lease cost	$ 316	$ 326
Lease Term and Discount Rate
Weighted-average remaining lease term (years)	7 months 6 days	2 years 3 months 18 days
Weighted-average discount rate	6.50%	6.00%
SG&A and R&D Expenses [Member]
Lease Cost
Operating lease cost	$ 850	$ 763
Short term lease cost	13	13
Sublease income	$ (547)	$ (450)

Operating lease assets.

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- Definition

Operating lease assets.

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Operating lease liabilities.

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Operating lease term and discount rate.

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- Definition

Amount of lease cost recognized by lessee for lease contract.

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- Definition

Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

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Present value of lessee's discounted obligation for lease payments from operating lease.

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.

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Amount of lessee's right to use underlying asset under operating lease.

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Weighted average discount rate for operating lease calculated at point in time.

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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of short-term lease cost, excluding expense for lease with term of one month or less.

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Amount of sublease income excluding finance and operating lease expense.

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