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Note 9 - Paycheck Protection Program (PPP) Loan (Details Textual) - USD ($)			1 Months Ended	3 Months Ended		9 Months Ended		10 Months Ended	217 Months Ended
	Dec. 21, 2021	Sep. 07, 2021	Feb. 28, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Feb. 28, 2021	May 30, 2020
Gain (Loss) on Extinguishment of Debt, Total				$ 0	$ 332,542	$ 0	$ 693,817
Gain (Loss) on Extinguishment of Debt, Total				0	$ 332,542	0	$ 693,817
Paycheck Protection Program CARES Act [Member]
Proceeds from Notes Payable, Total			$ 332,542					$ 713,542	$ 381,000
Gain (Loss) on Extinguishment of Debt, Total		$ 361,275
Gain (Loss) on Extinguishment of Debt, Total		361,275
Paycheck Protection Program CARES Act [Member] \| Loans Payable [Member]
Gain (Loss) on Extinguishment of Debt, Total	$ 332,542
Gain (Loss) on Extinguishment of Debt, Total	$ 332,542
PPP Term Loan One [Member]
Loans Payable, Total		$ 19,725		$ 13,001		$ 13,001
Debt Instrument, Interest Rate, Stated Percentage		1.00%
Debt Instrument, Maturity Date		May 15, 2025