Other Long-Term Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Other Long-Term Liabilities
Net deferred tax liabilities related to IPR&D	$ 1,613	$ 1,613
Deferred income from sale of tax benefits	4,650
Contingent milestones		6,862
Deferred revenue	60	433
Total	6,323	8,908
Less current portion	(990)	(1,554)
Long-term portion	$ 5,333	$ 7,354