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Note 5 - Content and Software Development Assets (Tables)
 3 Months Ended
Mar. 31, 2019
Notes Tables  
Expense of Development Costs [Table Text Block]
   
March 31,
2019
    
March 31,
2018
  
Opening total game development costs
   $
6,716,810
     $
5,768,476
  
                 
Game development during the period
    
254,457
      
270,619
  
Closing total game development costs
   $
6,971,267
     $
6,039,095