Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Revenues [Abstract]
Total revenue	$ 1,300	$ 100	$ 1,300	$ 100
Operating expenses:
Research and development	22,267	67,632	59,144	131,483
General and administrative	6,422	93,366	12,446	103,340
Total operating expenses	28,689	160,998	71,590	234,823
Loss from operations	(27,389)	(160,898)	(70,290)	(234,723)
Other income (expense):
Gain related to transaction with Acquirer	0	2,021,498	0	2,021,498
Interest expense	(3,141)	(5,361)	(5,830)	(13,491)
Interest income	2,124	2,741	4,453	6,045
Other income (expense), net	(246)	33	(296)	(26)
Total other income (expense)	(1,263)	2,018,911	(1,673)	2,014,026
Income (loss) before income tax expense	(28,652)	1,858,013	(71,963)	1,779,303
Provision for income taxes	2	2	2	2
Net income (loss)	$ (28,654)	$ 1,858,011	$ (71,965)	$ 1,779,301
Earnings (loss) per share
Basic (in dollars per share)	$ (1.85)	$ 127.10	$ (4.65)	$ 125.93
Diluted (in dollars per share)	$ (1.85)	$ 125.48	$ (4.65)	$ 122.75
Shares used in computing earnings (loss) per share
Basic (in shares)	15,468	14,619	15,468	14,129
Diluted (in shares)	15,468	14,807	15,468	14,495
License fee revenue
Revenues [Abstract]
Total revenue	$ 1,300	$ 100	$ 1,300	$ 100