Consolidated Statements of Operations and Comprehensive Loss - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Operating expenses
Research and development	$ 6,398,000	$ 23,770,000
Acquired in-process research and development	4,395,000
General and administrative	10,499,000	12,687,000
Restructuring costs	968,000	3,448,000
Total operating expenses	22,260,000	39,905,000
Loss from operations	(22,260,000)	(39,905,000)
Other income (expense), net
Interest income, net	844,000	1,689,000
Foreign exchange transaction gain (loss), net	18,000	(197,000)
Gain on sale of equipment		64,000
Total other income, net	862,000	1,556,000
Loss before income tax expense	(21,398,000)	(38,349,000)
Income tax expense	(41,000)	0
Net loss	$ (21,439,000)	$ (38,349,000)
Net loss per common share, basic	$ (18.53)	$ (36.08)
Net loss per common share, diluted	$ (18.53)	$ (36.08)
Weighted-average number of shares used in computing net loss per common share, basic	1,157,149	1,062,873
Weighted-average number of shares used in computing net loss per common share, diluted	1,157,149	1,062,873
Other comprehensive income (loss), net of tax
Currency translation gain (loss)	$ (283,000)	$ 393,000
Unrealized gain on marketable securities		231,000
Other comprehensive income (loss), net of tax	(283,000)	624,000
Total comprehensive loss	$ (21,722,000)	$ (37,725,000)