Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Operating expenses:
Research and development	$ 23,118	$ 30,643	$ 60,917	$ 54,497
General and administrative	9,867	10,129	21,336	18,365
Total operating expenses	32,985	40,772	82,253	72,862
Loss from operations	(32,985)	(40,772)	(82,253)	(72,862)
Other income (expense):
Interest income	27	40	41	106
Interest expense	(912)	(194)	(1,761)	(194)
Other expense	(3)		(11)
Total other expense, net	(888)	(154)	(1,731)	(88)
Net loss	$ (33,873)	$ (40,926)	$ (83,984)	$ (72,950)
Net loss per common share, basic	$ (0.84)	$ (1.09)	$ (2.14)	$ (1.96)
Net loss per common share, diluted	$ (0.84)	$ (1.09)	$ (2.14)	$ (1.96)
Weighted average common shares outstanding, basic	40,142,403	37,479,164	39,163,996	37,237,115
Weighted average common shares outstanding, diluted	40,142,403	37,479,164	39,163,996	37,237,115