Property and Equipment, Net - Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Property, Plant and Equipment [Line Items]
Less: Accumulated depreciation	$ (1,423)	$ (1,120)
Total property and equipment, net	1,077	1,354
Furniture and equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	1,076	1,050
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	991	991
Software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 433	$ 433

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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