CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Operating expenses
Research and development	$ 49,757	$ 35,108
General and administrative	35,111	22,920
Total operating expenses	84,868	58,028
Loss from operations	(84,868)	(58,028)
Other income (expense), net	3,517	(389)
Loss before income taxes	(81,351)	(58,417)
Income tax benefit	0	(52)
Net loss	(81,351)	(58,365)
Other comprehensive income (loss)
Foreign currency translation adjustment	25	0
Unrealized gain (loss) on marketable securities	1	0
Comprehensive loss	$ (81,325)	$ (58,365)
Shares used in calculating net loss per common share - basic (in shares)	214,600,051	195,013,043
Shares used in calculating net loss per common share - diluted (in shares)	214,600,051	195,013,043
Net loss per share of common stock - basic (in USD per share)	$ (0.38)	$ (0.30)
Net loss per share of common stock - diluted (in USD per share)	$ (0.38)	$ (0.30)