Other Long-Term Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Other Long-Term Liabilities
Net deferred tax liabilities related to IPR&D	$ 1,613	$ 1,613
Deferred income from sale of tax benefits	2,790	3,720
Deferred revenue	2,947	3,058
Total	7,350	8,391
Less current portion	(3,877)	(3,988)
Long-term portion	$ 3,473	$ 4,403