Property and Equipment, Net - Schedule of Property Plant and Equipment (Detail) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Property Plant and Equipment [Line Items]
Total property and equipment	$ 2,821	$ 2,748
Less accumulated depreciation	(1,333)	(966)
Property and equipment, net	1,488	1,782
Lab equipment [Member]
Property Plant and Equipment [Line Items]
Total property and equipment	1,382	1,382
Furniture and fixtures [Member]
Property Plant and Equipment [Line Items]
Total property and equipment	351	341
Computer equipment [Member]
Property Plant and Equipment [Line Items]
Total property and equipment	89	85
Leasehold improvements [Member]
Property Plant and Equipment [Line Items]
Total property and equipment	$ 999	$ 940