Interest Expense (Tables)

3 Months Ended

Mar. 31, 2023

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,
	2023		2022
	(unaudited)
Interest expense	$	(1,188)	$	(1,155)
Interest expense on nonrecourse liability related to sale of future royalties	(317)		(787)
Total	$	(1,505)	$	(1,942)