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Note 14 - Subsequent Events (Details Textual) - Subsequent Event [Member] - USD ($)
1 Months Ended
Aug. 19, 2020
Jul. 31, 2020
Jul. 17, 2020
Common Stock [Member]      
Conversion of Stock, Shares Issued (in shares) 276,600    
Stock Issued During Period, Shares, Issued for Interest (in shares) 11,000    
Convertible Preferred Stock [Member]      
Conversion of Stock, Shares Converted (in shares) 27,660    
Interest Rate on Convertible Shares 8.00%    
Warrants Issued in Conjuction With Equity Financing [Member] | Tradigital Marketing Group [Member]      
Class of Warrant or Right, Exercised During Period (in shares)   250,000  
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)   171,000  
Warrants Issued in Conjuction With Equity Financing [Member] | Garden State Securities [Member]      
Class of Warrant or Right, Exercised During Period (in shares)   250,000  
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)   161,000  
PNC Agreements [Member] | PNC [Member]      
Minimum Commitmnet for Equity Funding     $ 3,000,000