Condensed Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
Grant revenue	$ 7,000	$ 399
Operating expenses:
Research and development	60,193	5,714
Selling, general and administrative	7,327	2,080
Total operating expenses	67,520	7,794
Loss from operations	(60,520)	(7,395)
Other income:
Other income, net	28	21
Total other income, net:	28	21
Net loss and comprehensive loss	$ (60,492)	$ (7,374)
Net loss per share, basic and diluted	$ (4.61)	$ (3.49)
Weighted average shares used in the calculation of net loss per share, basic and diluted	13,110,713	2,115,770