Supplemental Balance Sheet Information - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 279	$ 279
Less: accumulated depreciation and amortization	(239)	(225)
Property and equipment, net	40	54
Scientific equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	246	246
Computers and software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	3	3
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 30	$ 30

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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