Segment Information - Summary of Research and Development, General and Administrative Expenses, and Restructuring Charges are Significant Segment Expenses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Segment Reporting Information [Line Items]
Research and development	$ 49	$ 22
General and administrative	1,064	836
Restructuring and other charges	206	40
Clinical research and external costs
Segment Reporting Information [Line Items]
Research and development	53	5
Restructuring and other charges	0	4
Facility and all other costs
Segment Reporting Information [Line Items]
Research and development	(4)	0
General and administrative	47	63
Restructuring and other charges	0	(12)
Compensation and benefits
Segment Reporting Information [Line Items]
Research and development	0	17
General and administrative	122	145
Restructuring and other charges	65	48
Consulting and professional services
Segment Reporting Information [Line Items]
General and administrative	895	628
Restructuring and other charges	$ 141	$ 0

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References + Details