Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenue
Total revenue	$ 1,491	$ 1,092
Operating expenses
Research and development	15,915	13,002
General and administrative	3,489	3,088
Total operating expenses	19,404	16,090
Loss from operations	(17,913)	(14,998)
Other income (expense), net:
Interest income	467	10
Change in fair value of warrant liability	(33,207)	1,228
Other income, net	697	703
Total other income (expense), net	(32,043)	1,941
Net loss	$ (49,956)	$ (13,057)
Net loss per share - basic and diluted (in dollars per share)	$ (0.66)	$ (0.62)
Weighted-average common shares used to compute basic and diluted net loss per share (in shares)	75,715	21,130
Collaborative Arrangement [Member]
Revenue
Total revenue	$ 1,491	$ 1,092