Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenue
Total revenue	$ 1,274	$ 1,615	$ 2,764	$ 2,707
Operating expenses
Research and development	10,790	17,315	26,705	30,317
General and administrative	3,070	3,727	6,559	6,815
Total operating expenses	13,860	21,042	33,264	37,132
Loss from operations	(12,586)	(19,427)	(30,500)	(34,425)
Other income (expense), net:
Interest income	352	63	819	73
Change in fair value of warrant liability	29,592	182	(3,615)	1,410
Other income, net	650	705	1,348	1,408
Total other income (expense), net	30,594	950	(1,448)	2,891
Net income (loss)	$ 18,008	$ (18,477)	$ (31,948)	$ (31,534)
Net income (loss) per share
Basic (in dollars per share)	$ 0.24	$ (0.61)	$ (0.42)	$ (1.22)
Diluted (in dollars per share)	$ (0.12)	$ (0.61)	$ (0.42)	$ (1.22)
Weighted-average shares used to compute net income (loss) per share
Basic (in shares)	75,727	30,505	75,721	25,844
Diluted (in shares)	99,637	30,505	75,721	25,844
Collaborative Arrangement [Member]
Revenue
Total revenue	$ 1,274	$ 1,615	$ 2,764	$ 2,707