Segment Reporting - Summary of Segment Loss (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	Mar. 31, 2026	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2026	Jun. 30, 2025
Segment Reporting [Abstract]
CDMO, CRO and other third-party clinical trials and consulting costs	$ 7,395		$ 6,915		$ 13,608	$ 11,727
Internal research and development personnel costs	1,496		1,175		2,770	2,244
Other research and development costs	127		350		212	499
General and administrative personnel expenses	1,220		1,094		2,785	1,771
Other general and administrative expenses	2,148		2,722		4,844	6,369
Interest expense	0		0		0	1,443
Other segment items	(871)		(906)		(1,848)	(2,507)
Net loss	$ (11,515)	$ (10,856)	$ (11,350)	$ (10,196)	$ (22,371)	$ (21,546)

Amount of interest expense classified as operating and nonoperating. Includes, but is not limited to, cost of borrowing accounted for as interest expense.

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+ Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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+ Details