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Leases - Summary of Lease Costs As Follows (Detail) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Income Statement
Operating lease cost	[1]	$ 183	$ 183	$ 550	$ 550
Other Information
Weighted-average remaining lease term (months)		27 months		27 months		36 months
Weighted-average discount rate		7.60%		7.60%		7.60%
[1] Operating lease cost is recorded within general and administrative expenses in the accompanying unaudited condensed consolidated statements of operations and comprehensive loss.

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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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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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