Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Research and development	$ 9,863	$ 1,763	$ 12,116	$ 3,178
General and administrative	1,589	2,420	3,741	4,712
Loss on impairment of goodwill	0	2,574	0	3,058
Total operating expenses	11,452	6,757	15,857	10,948
Operating loss	(11,452)	(6,757)	(15,857)	(10,948)
Gain on debt extinguishment	0	0	14,520	0
Interest income	20	108	50	152
Interest expense	(110)	(13)	(123)	(25)
Other (expense) income, net	(285)	61	(84)	109
Total other (expense) income, net	(375)	156	14,363	236
Loss before income taxes	(11,827)	(6,601)	(1,494)	(10,712)
Income tax expense	(197)	0	(311)	0
Net loss	$ (12,024)	$ (6,601)	$ (1,805)	$ (10,712)
Net loss per common share
Basic and diluted (in dollars per share)	$ (20.91)	$ (29.47)	$ (3.47)	$ (78.76)
Weighted average number of common shares outstanding
Basic and diluted (in shares)	575	224	520	136