Other Financial Statement Details - Schedule of Property and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 256	$ 101
Less accumulated depreciation and amortization	(70)	(89)
Total	186	12
Computer Hardware [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	24	72
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	52
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 180	$ 29