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Note 7 - Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2019
Notes Tables  
Schedule of Finite-Lived Intangible Assets [Table Text Block]
2019
 
Cost
   
Accumulated amortization
   
Net book
Value
 
                         
Ad Tech technology
  $
1,877,415
    $
312,902
    $
1,564,513
 
Kidoz OS technology
   
31,006
     
8,613
     
22,393
 
Customer relationship
   
1,362,035
     
141,879
     
1,220,156
 
    $
3,270,456
    $
463,394
    $
2,807,062