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Note 7 - Paycheck Protection Program (PPP) Loan (Details Textual) - USD ($)				1 Months Ended		12 Months Ended
	Dec. 21, 2021	Sep. 07, 2021	Feb. 28, 2021	Feb. 28, 2021	May 30, 2020	Mar. 31, 2023	Mar. 31, 2022
Gain (Loss) on Extinguishment of Debt, Total						$ 0	$ 693,817
Gain (Loss) on Extinguishment of Debt						0	693,817
Paycheck Protection Program CARES Act [Member]
Proceeds from Notes Payable, Total			$ 713,542	$ 332,542	$ 381,000
Gain (Loss) on Extinguishment of Debt, Total		$ 361,275
Gain (Loss) on Extinguishment of Debt		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	$ 332,542
PPP Term Loan One [Member]
Loans Payable, Total		$ 19,725				$ 11,656	$ 17,035
Debt Instrument, Interest Rate, Stated Percentage		1.00%
Debt Instrument, Maturity Date		May 15, 2025