Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Operating expenses:
Research and development	$ 87,815	$ 69,037
General and administrative	31,919	24,281
Total operating expenses	119,734	93,318
Loss from operations	(119,734)	(93,318)
Other income (expense):
Interest income	7,448	2,963
Investment advisory fees	(872)	(644)
Change in fair value of warrants liability	10,187	4,231
Net (loss) gain on marketable securities	(1,228)	(80)
Total other income (expense), net	15,535	6,470
Loss before income taxes	(104,199)	(86,848)
Provision for income taxes	0	0
Net loss	$ (104,199)	$ (86,848)
Net loss per share attributable to common stockholders, basic	$ (0.48)	$ (0.44)
Net loss per share attributable to common stockholders, diluted	$ (0.48)	$ (0.44)
Weighted average common shares outstanding, basic	216,721	197,887
Weighted average common shares outstanding, diluted	216,721	197,887
Comprehensive loss:
Net loss	$ (104,199)	$ (86,848)
Other comprehensive income (loss), net of taxes:
Unrealized loss on available-for-sale securities, net	(4,341)	(2,742)
Comprehensive loss	$ (108,540)	$ (89,590)