Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Revenue:
Revenues	$ 72,413	$ 4,933	$ 133,019	$ 13,515
Operating expenses:
Research and development	75,947	15,066	156,426	51,559
General and administrative	4,277	4,342	13,942	16,757
Total operating expenses	80,224	19,408	170,368	68,316
Operating loss	(7,811)	(14,475)	(37,349)	(54,801)
Other income (expense):
Interest income	302	1,022	1,049	1,941
Non-cash interest expense related to sale of future royalties	(608)	(631)	(2,277)	(2,045)
Other income (expense), net	(7)	22	(9)	26
Loss before income taxes	(8,124)	(14,062)	(38,586)	(54,879)
Provision for income taxes	17	18	132	84
Net loss	$ (8,141)	$ (14,080)	$ (38,718)	$ (54,963)
Net loss per share - basic and diluted (in dollars per share)	$ (0.04)	$ (0.06)	$ (0.17)	$ (0.28)
Shares used to compute net loss per share - basic and diluted (in shares)	228,926,340	227,452,883	228,405,929	193,655,660
Comprehensive loss:
Net loss	$ (8,141)	$ (14,080)	$ (38,718)	$ (54,963)
Unrealized gain (loss) on available-for-sale investments, net of tax	5	43	(6)	28
Comprehensive loss	(8,136)	(14,037)	(38,724)	(54,935)
Non Cash Royalty Revenue [Member]
Revenue:
Revenues	0	40	1,579	662
Government Contract [Member]
Revenue:
Revenues	$ 72,413	$ 4,893	$ 131,440	$ 12,853