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Note 11 - Convertible Notes (Details Textual)
12 Months Ended
Apr. 14, 2022
USD ($)
Dec. 31, 2021
USD ($)
shares
Dec. 31, 2020
USD ($)
Conversion of Convertible Notes into Common Stock [Member]      
Debt Conversion, Original Debt, Amount   $ 5,173,785  
Debt Conversion, Converted Instrument, Shares Issued (in shares) | shares   3,488,883  
Debt Conversion, Accrued Interest, Amount   $ 78,893  
Stock Issued During Period, Shares, Settlement of Accrued Interest (in shares) | shares   94,357  
Convertible Debt Payable to Non-related Party [Member]      
Debt Instrument, Convertible, Beneficial Conversion Feature   $ 180,098  
Convertible Debt [Member]      
Debt Instrument, Convertible, Beneficial Conversion Feature   $ 198,239 $ 0
Debt Instrument, Convertible, Number of Equity Instruments   914,732  
Convertible Debt [Member] | Forecast [Member]      
Debt Instrument, Convertible, Number of Equity Instruments 363,767    
Debt Instrument, Debt Default, Amount $ 576,472