CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating expenses
Research and development	$ 7,915	$ 2,872
General and administrative	10,119	4,185
Total operating expenses	18,034	7,057
Loss from operations	(18,034)	(7,057)
Other income (expense), net	15	(20)
Comprehensive loss	(18,019)	(7,077)
Net loss	$ (18,019)	$ (7,077)
Shares used in calculating net loss per common share - basic (in shares)	205,693,498	186,298,122
Shares used in calculating net loss per common share - diluted (in shares)	205,693,498	186,298,122
Net loss per share of common stock - basic (in USD per share)	$ (0.09)	$ (0.04)
Net loss per share of common stock - diluted (in USD per share)	$ (0.09)	$ (0.04)