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Note 6 - Receivables from an Unrelated Party, Prepaid Expenses and Other Receivables (Tables)
9 Months Ended
Sep. 30, 2018
Receivables [Abstract]  
Schedule of Other Current Assets [Table Text Block]
(b) Prepaid Expenses and Other Receivables consisted of the following at September 30, 2018 and December 31, 2017:

   

September 30, 2018

   

December 31, 2017

 
                 

Prepaid expenses

  $ 156,470     $ 198,485  

Other receivables

    29,930       34,450  

Total

  $ 186,400     $ 232,935