CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating expenses:
Research and development	$ 19,385	$ 16,526	$ 24,468
General and administrative	8,163	6,881	8,097
Total operating expenses	27,548	23,407	32,565
Loss from operations	(27,548)	(23,407)	(32,565)
Interest income and other expense, net	1,824	1,584	654
Gain from sale of property and equipment	5		22
Change in fair value of warrant liability	(33,377)
Sublease income - related party		78	587
Loss before equity method investment	(59,096)	(21,745)	(31,302)
Loss from equity method investment	(3,197)	(5,284)	(10,005)
Net loss	$ (62,293)	$ (27,029)	$ (41,307)
Net loss per share, basic	$ (1.02)	$ (0.56)	$ (0.89)
Net loss per share, diluted	$ (1.02)	$ (0.56)	$ (0.89)
Shares used to compute net loss per share, basic	60,985,165	48,025,274	46,553,511
Shares used to compute net loss per share, diluted	60,985,165	48,025,274	46,553,511
Other comprehensive loss:
Unrealized gain (loss) on marketable securities	$ 65	$ 66	$ (48)
Cumulative foreign currency translation adjustment	(386)	(470)	(2,384)
Comprehensive loss	$ (62,614)	$ (27,433)	$ (43,739)