Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Research and development	$ 2,253	$ 1,415
General and administrative	2,152	2,292
Loss on impairment of goodwill	0	484
Total operating expenses	4,405	4,191
Operating loss	(4,405)	(4,191)
Other income (expense):
Gain on debt extinguishment	14,520	0
Interest income	30	44
Interest expense	(13)	(12)
Other income, net	201	48
Total other income, net	14,738	80
Income (loss) before income taxes	10,333	(4,111)
Income tax expense	(114)	0
Net income (loss)	$ 10,219	$ (4,111)
Net income (loss) per common share
Basic and diluted (in dollars per share)	$ 21.98	$ (85.65)
Weighted average number of common shares outstanding
Basic and diluted (in shares)	465	48