Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Operating expense
Research and development	$ 14,750	$ 8,683	$ 43,115	$ 27,103
General and administrative	2,660	2,227	9,544	7,192
Total operating expense	17,410	10,910	52,659	34,295
Loss from operations	(17,410)	(10,910)	(52,659)	(34,295)
Other income (expense)
Interest income	36	39	81	87
Interest expense	(2)	(20)	(14)	(1,593)
Net loss on extinguishment of debt				(2,387)
Gain on forgiveness of debt				149
Change in fair value of convertible notes	(2,137)		(2,477)
Change in fair value of warrant liabilities	(91)	76	192	(750)
Total other (expense) income	(2,194)	95	(2,218)	(4,494)
Net loss and comprehensive loss	(19,604)	(10,815)	(54,877)	(38,789)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	$ (19,604)	$ (10,815)	$ (54,877)	$ (38,789)