Note 2 - Liquidity and Uncertainties (Details Textual) - USD ($)		3 Months Ended
	Apr. 08, 2024	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Retained Earnings (Accumulated Deficit)		$ (124,780,038)		$ (123,339,509)
Operating Income (Loss)		(1,465,068)	$ (1,342,676)
Cash, Cash Equivalents, and Marketable Securities		5,000,000
Working Capital		7,200,000
Net Cash Provided by (Used in) Operating Activities		$ (1,218,128)	$ (2,003,588)
Subsequent Event [Member]
Proceeds From Sale of Net Operating Loss Amount	$ 2,000,000