Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Operating expenses:
Research and development	$ 1,381	$ 1,431
General and administrative	1,107	1,234
Total operating expenses	2,488	2,665
Operating loss	(2,488)	(2,665)
Other income:
Interest income (expense), net	156	1
Other income		9
Interest and other income, net	156	10
Net loss	$ (2,332)	$ (2,655)
Net loss per share, basic	$ (0.85)	$ (1.94)
Net loss per share, diluted	$ (0.85)	$ (1.94)
Weighted average number of common shares outstanding, basic (In Shares)	2,735,767	1,370,347
Weighted average number of common shares outstanding, diluted (In Shares)	2,735,767	1,370,347