Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Revenues:
Collaboration and license revenue	$ 0	$ 12,500
Operating expenses:
Research and development	27,230	37,013
General and administrative	15,798	19,826
Restructuring	2,752	0
Total operating expenses	45,780	56,839
Loss from operations	(45,780)	(44,339)
Interest income	2,340	781
Other income, net	398	7,554
Net loss	(43,042)	(36,004)
Unrealized gain (loss) on marketable securities, net of tax	241	(122)
Comprehensive loss	$ (42,801)	$ (36,126)
Net loss per share attributable to common stockholders, basic	$ (21.33)	$ (15.56)
Net loss per share attributable to common Stockholders, diluted	$ (21.33)	$ (15.56)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic	2,018	2,314
Weighted-average shares used in computing net loss per share attributable to common stockholders, diluted	2,018	2,314