Segment Reporting - Summary of Segment Loss (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2025	Jun. 30, 2024
Segment Reporting [Abstract]
CDMO, CRO and Other Third-party Preclinical Studies, Clinical Trials and Consulting Costs	$ 6,915		$ 2,359		$ 11,727	$ 3,874
License fees, milestone payments, and annual maintenance fees related to acquired technologies						50
Internal research and development personnel expenses	1,175		642		2,244	1,018
Other research and development costs	350		210		499	230
General and administrative personnel expenses	1,094		559		1,771	768
Other general and administrative expenses	2,722		417		6,369	810
Interest expense			499		1,443	577
Other segment items	(906)		964		(2,507)	1,730
Net loss	$ (11,350)	$ (10,196)	$ (5,650)	$ (3,407)	$ (21,546)	$ (9,057)