CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Operating expenses:
Research and development	$ 6,332,000	$ 7,012,000
General and administrative	4,366,000	4,450,000
Loss on impairment of property and equipment	126,000	0
Total operating expenses	10,824,000	11,462,000
Operating loss	(10,824,000)	(11,462,000)
Total other expense, net	(2,000)	(18,000)
Net loss	$ (10,826,000)	$ (11,480,000)