Sale of Future Royalties (Tables)

6 Months Ended

Jun. 30, 2022

Deferred Revenue Disclosure [Abstract]

Schedule of Activity of Royalty Obligation

The following table shows the activity of the Royalty Obligation since the transaction inception through June 30, 2022:

	As of June 30, 2022
	(In thousands)
Proceeds from sale of future royalties	$	12,601
Non-cash royalty revenue		(93	)
Non-cash interest expense recognized		4,104
Liability related to the sale of future royalties - ending balance	$	16,612
Less current portion		(592	)
Related party liability related to sale of future royalties, net of current portion	$	16,020