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Note 10 - Paycheck Protection Program (PPP) Loan (Details Textual) - USD ($)		1 Months Ended		3 Months Ended		9 Months Ended		10 Months Ended
	Sep. 07, 2021	Feb. 28, 2021	May 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Feb. 28, 2021
Proceeds from Notes Payable, Total						$ 0	$ 381,000
Gain (Loss) on Extinguishment of Debt, Total				$ 332,542	$ 0	693,817	(0)
Gain (Loss) on Extinguishment of Debt, Total				332,542	$ 0	693,817	$ (0)
Paycheck Protection Program CARES Act [Member]
Proceeds from Notes Payable, Total		$ 332,542	$ 381,000					$ 713,542
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			$ 18,059		$ 18,059
Debt Instrument, Interest Rate, Stated Percentage	1.00%
Debt Instrument, Maturity Date	May 15, 2025