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Note 10 - Convertible Notes (Details Textual)
2 Months Ended 12 Months Ended
Mar. 12, 2021
USD ($)
Mar. 12, 2021
USD ($)
Dec. 31, 2020
Subsequent Event [Member]      
Debt Instrument, Convertible, Number of Equity Instruments   68,750  
Convertible Debt [Member]      
Debt Instrument, Convertible, Number of Equity Instruments     3,975,198
Convertible Debt [Member] | Subsequent Event [Member]      
Debt Instrument, Convertible, Number of Equity Instruments 2,844,410    
Debt Instrument, Debt Default, Amount $ 4,590,880 $ 4,590,880