Note 2 - Liquidity and Uncertainties (Details Textual) - USD ($)		3 Months Ended		6 Months Ended		60 Months Ended
	Apr. 01, 2024	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Apr. 01, 2029	Dec. 31, 2023
Retained Earnings (Accumulated Deficit)		$ (124,556,400)		$ (124,556,400)			$ (123,339,509)
Operating Income (Loss)		(1,780,423)	$ (2,277,550)	(3,245,491)	$ (3,620,226)
Cash, Cash Equivalents, and Marketable Securities		5,800,000		5,800,000
Working Capital		$ 7,700,000		7,700,000
Net Cash Provided by (Used in) Operating Activities				$ (434,473)	$ (3,027,126)
Proceeds From Sale of Net Operating Loss Amount	$ (2,000,000)
New Jersey Technology Business Tax Certificate Transfer Program (”NJEDA Program”) [Member]
Government Assistance, Physical Presence Requirement Period (Year)						5 years
Government Assistance, Contingent Liability, Amount	$ 2,200,000