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Note 9 - Notes Payable (Details Textual) - USD ($)							6 Months Ended	12 Months Ended
Note 9 - Notes Payable (Details Textual) - USD ($)	Feb. 13, 2026	Aug. 06, 2025	Apr. 28, 2025	May 31, 2024	Mar. 28, 2023	Jun. 24, 2020	Jun. 30, 2026	Dec. 31, 2023	Dec. 31, 2025	Dec. 31, 2024	Aug. 01, 2023	Apr. 06, 2022
Conversion of April 2022 Note to Shares Under Subscription Agreement [Member]
Debt Conversion, Original Debt, Amount				$ 100,000
Michael King [Member]
Debt Instrument, Periodic Payment, Principal							$ 100,000
Michael King [Member] \| Notes Payable, Other Payables [Member]
Debt Instrument, Face Amount												$ 1,000,000
Debt Instrument, Periodic Payment, Principal			$ 420,000
Debt Instrument, Periodic Payment			$ 37,000
Debt Instrument, Periodic Payment, Principal					$ 25,000
Debt Instrument, Interest Rate During Period					20.00%
Related Party [Member] \| Michael King [Member]
Debt Instrument, Periodic Payment, Principal							111,000
Debt Instrument, Periodic Payment, Interest							10,000
July 2023 Note Financing [Member]
Debt Instrument, Periodic Payment, Principal	$ 100,000
July 2023 Note Financing [Member] \| Related Party [Member]
Debt Instrument, Face Amount											$ 1,400,000
Debt Instrument, Interest Rate, Stated Percentage			10.00%								21.00%
Debt Instrument, Periodic Payment, Principal							41,000	$ 1,070,000
Debt Instrument, Periodic Payment, Interest			$ 75,000				$ 1,000	$ 70,000
Notes Payable									$ 138,000	$ 400,000
Debt Instrument, Periodic Payment			$ 18,000
August Note [Member]
Debt Instrument, Face Amount		$ 2,000,000
Debt Instrument, Interest Rate, Stated Percentage		13.00%
Debt Instrument, Term		1 year
EID Loan [Member] \| Don Polly [Member]
Debt Instrument, Interest Rate, Stated Percentage						3.75%
Proceeds from Issuance of Debt						$ 150,000