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Note 6 - Fixed Assets (Tables)
12 Months Ended
Dec. 31, 2018
Notes Tables  
Property, Plant and Equipment [Table Text Block]
December 31, 2018
                 
    Cost     Accumulated
depreciation
    Net  
                   
Land   $
2,521
    $
-
    $
2,521
 
Buildings    
10,581
     
4,952
     
5,629
 
Vehicles    
67,441
     
40,821
     
26,620
 
Furniture and equipment    
74,052
     
49,275
     
24,777
 
Computer equipment and software    
100,743
     
76,108
     
24,635
 
Leasehold improvements    
34,477
     
20,557
     
13,920
 
    $
289,815
    $
191,713
    $
98,102
 
December 31, 2017                  
    Cost     Accumulated
depreciation
    Net  
                   
Land   $
2,521
    $
-
    $
2,521
 
Buildings    
10,456
     
4,701
     
5,755
 
Vehicles    
60,227
     
37,934
     
22,293
 
Furniture and equipment    
64,003
     
44,565
     
19,438
 
Computer equipment and software    
93,007
     
69,309
     
23,698
 
Leasehold improvements    
29,757
     
18,038
     
11,719
 
    $
259,971
    $
174,547
    $
85,424