Consolidated Statements of Operations and Comprehensive Loss - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Operating expenses
Research and development	$ 30,312,000	$ 27,080,000
General and administrative	12,688,000	12,700,000
Goodwill impairment	0	48,648,000
Total operating expenses	43,000,000	88,428,000
Loss from operations	(43,000,000)	(88,428,000)
Other income, net	2,674,000	462,000
Loss before income taxes	(40,326,000)	(87,966,000)
Income taxes	0	0
Net loss and comprehensive loss	$ (40,326,000)	$ (87,966,000)
Net loss per share, basic	$ (1.64)	$ (6.16)
Net loss per share, diluted	$ (1.64)	$ (6.16)
Weighted-average common shares outstanding, basic	24,619,197	14,285,254
Weighted-average common shares outstanding, diluted	24,619,197	14,285,254