CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Operating expenses:
Research and development	$ 12,340	$ 133,070
General and administrative	42,916	48,261
Restructuring costs	10,185	0
Impairment costs	0	18,570
Total operating expenses	65,441	199,901
Loss from operations	(65,441)	(199,901)
Total other income (loss), net:
Interest income	5,486	5,734
Other income (loss), net	1,186	3,623
Loss before income taxes	(58,769)	(190,544)
Income tax benefit	0	(126)
Net loss	$ (58,769)	$ (190,418)
Net loss per share - basic	$ (11.73)	$ (42.09)
Net loss per share - diluted	$ (11.73)	$ (42.09)
Weighted-average common shares outstanding - basic	5,008,449	4,524,226
Weighted-average common shares outstanding - diluted	5,008,449	4,524,226
Comprehensive loss:
Net Income (Loss)	$ (58,769)	$ (190,418)
Other comprehensive income (loss), net of tax:
Unrealized (loss) gain on available-for-sale securities	(73)	406
Total other comprehensive (income) loss	(73)	406
Comprehensive loss	$ (58,842)	$ (190,012)