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Note 2 - Equity Method Investment (Tables)
3 Months Ended
Mar. 31, 2019
Notes Tables  
Equity Method Investments [Table Text Block]
    For the three Months Ended
    March 31, 2019
Revenue   $
45,835
 
         
Gross margin   $
7,348
         
         
Net loss from continuing operations   $
(1,555,542
)
         
Net loss to investee   $
(1,166,656
)
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