Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Grant revenue	$ 8,193	$ 10,938
Operating expenses:
Research and development	157,591	89,019
Selling, general and administrative	42,418	13,103
Total operating expenses	200,009	102,122
Loss from operations	(191,816)	(91,184)
Other income (expense), net	(220)	54
Net loss and comprehensive loss	$ (192,036)	$ (91,130)
Net loss per share, basic and diluted	$ (8.48)	$ (42.98)
Weighted average shares used in the calculation of net loss per share, basic and diluted:	22,655,339	2,120,322