Condensed Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Grant revenue	$ 582	$ 2,001
Operating expenses:
Research and development	17,913	5,553
General and administrative	6,322	1,091
Total operating expenses	24,235	6,644
Loss from operations	(23,653)	(4,643)
Other income (expense):
Change in fair value of embedded derivative liability	0	(205)
Loss on extinguishment of convertible promissory note	0	(754)
Interest and other income (expense)	120	(249)
Total other income (expense)	120	(1,208)
Net loss and comprehensive loss	$ (23,533)	$ (5,851)
Net loss per share, basic and diluted	$ (0.60)	$ (2.11)
Weighted-average common shares outstanding, basic and diluted	39,401,805	2,769,962