Segment Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($) segment	Mar. 31, 2023 USD ($)
Segment Information
Number of reportable segments | segment	2
Total revenue	$ 2,398	$ 2,528
Cost of revenue	592	808
Research and development	8,527	22,587
General and administrative	5,850	8,790
Licensing	1,031	1,061
Revaluation of contingent consideration	2,800	(800)
Restructuring expense	2,529
Loss from operations	(18,931)	(29,918)
Dermatology Therapeutics Segment
Segment Information
Total revenue	1,741	1,638
Contract Research Segment
Segment Information
Total revenue	657	890
Operating Segments | Dermatology Therapeutics Segment
Segment Information
Research and development	8,760	22,859
Licensing	1,031	1,061
Revaluation of contingent consideration	2,800	(800)
Restructuring expense	1,318
Loss from operations	(12,168)	(21,482)
Operating Segments | Contract Research Segment
Segment Information
Total revenue	3,666	4,011
Cost of revenue	4,024	4,547
General and administrative	1,108	1,062
Restructuring expense	217
Loss from operations	(1,026)	(708)
Corporate and Other
Segment Information
Total revenue	(3,666)	(4,011)
Cost of revenue	(3,432)	(3,739)
Research and development	(233)	(272)
General and administrative	4,742	7,728
Restructuring expense	994
Loss from operations	$ (5,737)	$ (7,728)