Condensed Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Grant revenue	$ 0	$ 1,904	$ 582	$ 3,905
Operating expenses:
Research and development	15,820	8,277	33,733	13,830
General and administrative	7,311	2,221	13,633	3,312
Total operating expenses	23,131	10,498	47,366	17,142
Loss from operations	(23,131)	(8,594)	(46,784)	(13,237)
Other income (expense):
Change in fair value of embedded derivative liability	0	0	0	(205)
Loss on extinguishment of convertible promissory note	0	0	0	(754)
Interest and other	495	42	615	(207)
Total other income (expense)	495	42	615	(1,166)
Net loss	(22,636)	(8,552)	(46,169)	(14,403)
Comprehensive loss:
Unrealized losses on available-for-sale debt securities	(275)	0	(275)	0
Comprehensive loss	$ (22,911)	$ (8,552)	$ (46,444)	$ (14,403)
Net loss per share, basic	$ (0.57)	$ (2.86)	$ (1.17)	$ (5.00)
Net loss per share, diluted	$ (0.57)	$ (2.86)	$ (1.17)	$ (5.00)
Weighted average shares used to compute net loss per share, basic	39,594,028	2,985,183	39,524,408	2,878,163
Weighted average shares used to compute net loss per share, diluted	39,594,028	2,985,183	39,524,408	2,878,163