Interest Expense (Tables)

3 Months Ended

Mar. 31, 2022

Other Income and Expenses [Abstract]

Schedule of interest expense

The following details the composition of interest expense (dollars in thousands):

	Three Months ended March 31,
	2022		2021
	(unaudited)
Interest expense	$	(1,155)	$	(5,062)
Interest expense on nonrecourse liability related to sale of future royalties	(787)		(1,035)
Total	$	(1,942)	$	(6,097)