Derivative Liabilities (Tables)

12 Months Ended

Dec. 31, 2023

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Changes in Fair Value of Derivative Liabilities

Changes in the fair value of recurring measurements included in Level 3 of the fair value hierarchy are presented as other income, net in our statements of operations and comprehensive income (loss) and were as follows for the years ended December 31, 2023, 2022, and 2021 (in thousands):

	2023		2022
Balance at January 1,	$	1,656	$	698
2022 Exit Fee addition at fair value	—		375
Changes in estimated fair value:
2018 Exit Fee	292		510
2022 Exit Fee	227		73
2018 Exit Fee payment	$	(1,500)	$	—
Fair value of exit fee derivative liabilities at December 31,	$	675	$	1,656