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Note 8 - Content and Software Development Assets (Tables)
3 Months Ended
Mar. 31, 2020
Notes Tables  
Expense of Development Costs [Table Text Block]
   
March 31, 2020
   
March 31, 2019
 
Opening total development costs
  $
7,730,851
    $
6,716,810
 
                 
Development during the period
   
284,723
     
241,897
 
Closing total development costs
  $
8,015,574
    $
6,958,707