CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Income Statement [Abstract]
Total revenues	$ 501	$ 424
Operating expenses
Research and development	30,946	16,307
General and administrative	13,192	13,375
Total operating expenses	44,138	29,682
Operating loss	(43,637)	(29,258)
Other income, net	3,834	1,386
Loss from continuing operations before income taxes	(39,803)	(27,872)
Income tax expense	4	0
Loss from continuing operations	(39,807)	(27,872)
Loss from discontinued operations, net of income taxes	(27)	(580)
Net loss	$ (39,834)	$ (28,452)
Loss per share from continuing operations, basic (in dollars per share)	$ (0.93)	$ (2.72)
Loss per share from continuing operations, diluted (in dollars per share)	(0.93)	(2.72)
(Loss) income per share from discontinuing operations, basic (in dollars per share)	0	(0.06)
(Loss) income per share from discontinuing operations, diluted (in dollars per share)	0	(0.06)
Loss per share basic (in dollars per share)	(0.93)	(2.78)
Loss per share diluted (in dollars per share)	$ (0.93)	$ (2.78)
Weighted average shares outstanding - basic (in shares)	42,589	10,273
Weighted average shares outstanding - diluted (in shares)	42,589	10,273
Other comprehensive (loss) income:
Unrealized (losses) gains on marketable securities, net of tax of $0	$ (6)	$ 26
Total other comprehensive (loss) income	(6)	26
Comprehensive loss	$ (39,840)	$ (28,426)