Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating expense
Research and development	$ 10,009	$ 14,112
General and administrative	4,001	2,500
Total operating expense	14,010	16,612
Loss from operations	(14,010)	(16,612)
Other income (expense)
Interest income	26	19
Interest expense	(7)	(990)
Change in fair value of convertible notes	(244)
Change in fair value of warrant liabilities	234	(1,533)
Total other income (expense)	9	(2,504)
Net loss and comprehensive loss	$ (14,001)	$ (19,116)