Consolidated Statements of Operations and Comprehensive Loss - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Operating expenses:
Research and development	$ 69,037	$ 32,603
General and administrative	24,281	10,948
Total operating expenses	93,318	43,551
Loss from operations	(93,318)	(43,551)
Other income (expense):
Interest income	2,963	1,945
Investment advisory fees	(644)	(271)
Change in fair value of warrants liability	4,231	0
Net (loss) gain on marketable securities	80	218
Total other income (expense), net	6,470	1,892
Loss before income taxes	(86,848)	(41,659)
Provision for income taxes	0	0
Net loss	$ (86,848)	$ (41,659)
Net loss per share attributable to common stockholders, basic and diluted	$ (0.44)	$ (0.43)
Weighted average common shares outstanding, basic and diluted	197,887	97,530
Comprehensive loss:
Net loss	$ (86,848)	$ (41,659)
Other comprehensive income (loss), net of taxes:
Unrealized (loss) gain on available-for-sale securities, net	(2,742)	1,136
Comprehensive loss	$ (89,590)	$ (40,523)