CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues:
License fees and royalties	$ 596	$ 1,393	$ 253
Operating expenses:
Research and development	95,518	85,727	51,488
General and administrative	43,628	29,665	25,678
Total operating expenses	139,146	115,392	77,166
Loss from operations	(138,550)	(113,999)	(76,913)
Interest income	2,529	527	1,828
Interest expense	(6,882)	(3,740)	(760)
Change in fair value of equity investment			60
Other income , net	1,002	1,100	168
Net loss	$ (141,901)	$ (116,112)	$ (75,617)
Basic net loss per share	$ (0.37)	$ (0.35)	$ (0.28)
Diluted net loss per share	$ (0.37)	$ (0.35)	$ (0.28)
Shares used in computing basic net loss per share	380,784,846	327,631,814	271,460,265
Shares used in computing diluted net loss per share	380,784,846	327,631,814	271,460,265