Accrued Expenses (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Accrued Expenses
Employee compensation expenses	$ 4,979	$ 3,910
Research and development expenses	2,173	6,661
Deferred transaction consideration	3,927
Licensing expenses	8,645	5,478
Restructuring expenses (Note 15)	163	3,112
Other expenses	446	285
Total accrued expenses	$ 20,333	$ 19,446