Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Grant revenue	$ 7,802	$ 1,616
Operating expenses:
Research and development	38,776	17,667
General and administrative	34,887	2,659
Total operating expenses	73,663	20,326
Loss from operations	(65,861)	(18,710)
Other income (expense):
Change in fair value of embedded derivative liability	(205)	187
Loss on extinguishment of convertible promissory note	(754)	0
Interest and other expense	(151)	(331)
Total other expense	(1,110)	(144)
Net loss and comprehensive loss	$ (66,971)	$ (18,854)
Net loss per share, basic and diluted	$ (3.73)	$ (8.40)
Weighted-average common shares outstanding, basic and diluted	17,965,894	2,245,223