Segment Data (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) segment	Dec. 31, 2021 USD ($)
Segment Information
Number of reportable segments | segment	2
Revenue from external customers	$ 11,956	$ 4,335
Net loss	(48,395)	(52,600)
Segment assets	47,452	53,265
Less: investment in subsidiary	(29,232)	(29,232)
Less: Intercompany loan	(92,821)	(75,333)
Human Health
Segment Information
Net loss	(18,278)	(24,276)
Segment assets	40,898	42,250
Animal Health
Segment Information
Net loss	(30,117)	(28,324)
Segment assets	128,607	115,580
Product revenue
Segment Information
Revenue from external customers	11,956	4,335
Product revenue | Human Health
Segment Information
Revenue from external customers	11,741	4,273
Product revenue | Animal Health
Segment Information
Revenue from external customers	215	62
Operating Segments
Segment Information
Segment assets	$ 169,505	$ 157,830