Note 11 - Convertible Notes - Convertible Notes (Details) (Parentheticals) - Convertible Debt [Member]	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020 USD ($)
Conversion Rights	914,732
Convertible Notes 1[Member]
Interest Rate	5.00%	5.00%
Conversion Rights	363,767	363,767
Maturity Date, start	May 01, 2018	May 01, 2018
Maturity Date, end	Oct. 31, 2021	Oct. 31, 2021
Convertible Notes 2 [Member]
Interest Rate	5.00%	5.00%
Conversion Rights	550,965	550,965
Maturity Date, start	Jun. 30, 2022
Maturity Date, end	Dec. 31, 2022
Convertible Notes 3 [Member]
Interest Rate		7.00%
Conversion Rights		335,833
Original Amount		$ 1,104,713

The number of equity instruments that the holder of the debt instrument would receive if the debt was converted to equity.

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Face (par) amount of debt instrument at time of issuance.

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

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Latest date the outstanding debt instruments are required to be repaid, in YYYY-MM-DD format.

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Earliest date the outstanding debt instruments are required to be repaid, in YYYY-MM-DD format.

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