Note 2 - Summary of Significant Accounting Policies and Basis of Presentation (Details Textual)	3 Months Ended	12 Months Ended
Mar. 31, 2026 USD ($)	Mar. 31, 2025 USD ($)	Dec. 31, 2025 USD ($)
Working Capital	$ 17,400,000
Retained Earnings (Accumulated Deficit)	(187,333,939)		$ (184,137,952)
Cash	22,200,000
Net Income (Loss) Attributable to Parent	(3,195,987)	$ (6,432,840)
Cash, Uninsured Amount	$ 825,513		878,844
Financing for Liability Insurance Policy Premiums [Member]
Debt Instrument, Face Amount			406,875
Proceeds from Short-Term Debt			$ 325,500
Debt Instrument, Interest Rate, Stated Percentage			7.15%
Debt Instrument, Term			10 months
Research and Development Costs [Member] \| Supplier Concentration Risk [Member]
Number of Vendors	1	3
Research and Development Costs [Member] \| Supplier Concentration Risk [Member] \| Vendor One [Member]
Concentration Risk, Percentage	13.00%	53.00%
Research and Development Costs [Member] \| Supplier Concentration Risk [Member] \| Vendor Two [Member]
Concentration Risk, Percentage		18.00%
Research and Development Costs [Member] \| Supplier Concentration Risk [Member] \| Vendor Three [Member]
Concentration Risk, Percentage		12.00%

Represents the number of vendors during the period.

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The amount of working capital.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Period between issuance and maturity of debt instrument, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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