CONDENSED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating expenses:
Research and development	$ 1,784	$ 6,871
General and administrative	2,398	3,156
Total operating expenses	4,182	10,027
Loss from operations	(4,182)	(10,027)
Other income (expense):
Interest income	3	3
Interest expense		(3)
Warrant revaluation gain		6,983
Future tranche right revaluation gain		118,803
Foreign currency exchange gain (loss)	1	(21)
Net income (loss)	(4,178)	115,738
Undistributed earnings to preferred stockholders		(6,132)
Net income (loss) applicable to common stockholders	(4,178)	109,606
Net income (loss) applicable to common stockholders (Note 11)
Net income (loss)	(4,178)	109,606
Diluted	$ (4,178)	$ (10,048)
Net income (loss) per share applicable to common stockholders (Note 11)
Basic	$ (0.08)	$ 2.66
Diluted	$ (0.08)	$ (0.14)
Weighted-average number of common shares used in computing net income (loss) per share applicable to common stockholders
Basic	52,893	41,193
Diluted	52,893	70,980