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Note 5 - Equipment (Tables)
 12 Months Ended
Dec. 31, 2018
Notes Tables  
Property, Plant and Equipment [Table Text Block]
2018
  
Cost
    
Accumulated depreciation
    
Net book
Value
  
                         
Equipment and computers
   $
128,097
     $
112,845
     $
15,252
  
Furniture and fixtures
    
8,037
      
7,034
      
1,003
  
    $
136,134
     $
119,879
     $
16,255
  
2017
  
Cost
    
Accumulated depreciation
    
Net book
Value
  
                         
Equipment and computers
   $
116,444
     $
107,444
     $
9,000
  
Furniture and fixtures
    
7,541
      
6,821
      
720
  
    $
123,985
     $
114,265
     $
9,720