Segment Data (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($) segment	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)
Segment Information
Number of reportable segments | segment	2
Segment net loss	$ (9,368)	$ (12,397)
Segment assets	55,389		$ 50,763
Human Health
Segment Information
Segment net loss	(4,601)	(6,539)
Animal Health
Segment Information
Segment net loss	(4,767)	(5,858)
Product revenue, net
Segment Information
Revenue from external customers	2,351	1,972
Product revenue, net | Human Health
Segment Information
Revenue from external customers	2,303	1,927
Product revenue, net | Animal Health
Segment Information
Revenue from external customers	48	$ 45
Operating Segments
Segment Information
Segment assets	205,709		195,479
Operating Segments | Human Health
Segment Information
Segment assets	42,154		42,289
Operating Segments | Animal Health
Segment Information
Segment assets	163,555		153,190
Segment Reconciling Items
Segment Information
Segment assets	(29,232)		(29,232)
Intersegment Eliminations
Segment Information
Segment assets	$ (121,088)		$ (115,484)