Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Income Statement [Abstract]
Revenues	$ 8,333	$ 15,451
Operating expenses:
Research and development	66,001	56,778
General and administrative	28,953	30,047
Impairment of long-lived assets	4,838	1,065
Total operating expenses	99,792	87,890
Loss from operations	(91,459)	(72,439)
Other income (expense):
Change in fair value of warrant liability	16	(34,718)
Change in fair value of term loan	(4,583)	(1,538)
Loss on debt extinguishment		(1,398)
Interest income	6,940	3,572
Interest expense	(102)	(4,998)
Other expense	(110)	(47)
Total other income (expense), net	2,161	(39,127)
Net loss	$ (89,298)	$ (111,566)
Net loss per common share, basic	$ (0.36)	$ (0.96)
Net loss per common share, diluted	$ (0.36)	$ (0.96)
Weighted average common shares outstanding, basic	250,134,421	116,121,482
Weighted average common shares outstanding, diluted	250,134,421	116,121,482