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Note 9 - Related Parties (Details Textual) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
NCM [Member]    
Due to Related Parties, Current, Total $ 0  
Rent [Member]    
Related Party Transaction, Monthly Rent 2,500  
Services Agreements [Member]    
Related Party Transaction, Expenses from Transactions with Related Party $ 30,000 $ 30,000