Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Operating expenses:
Research and development	$ 64,542	$ 35,882
General and administrative	23,040	16,720
Total operating expenses	87,582	52,602
Loss from operations	(87,582)	(52,602)
Other income (expense), net:
Interest income	167	1,616
Interest expense	(2,583)
Total other income (expense), net	(2,416)	1,616
Net loss	(89,998)	(50,986)
Other comprehensive loss:
Unrealized loss on marketable securities	(21)	(72)
Total other comprehensive loss	(21)	(72)
Comprehensive loss	$ (90,019)	$ (51,058)
Basic and diluted net loss per common share	$ (1.27)	$ (0.74)
Weighted average common shares outstanding used to calculate basic and diluted net loss per common share	71,055,331	68,893,127