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Note 5 - Fixed Assets (Tables)
12 Months Ended
Dec. 31, 2016
Notes Tables  
Property, Plant and Equipment [Table Text Block]
December 31, 2016   Cost   Accumulated
depreciation
  Net
             
Land   $
2,520
    $
-
    $
2,520
 
Buildings    
10,366
     
4,529
     
5,837
 
Vehicles    
52,497
     
33,739
     
18,758
 
Furniture and equipment    
54,194
     
37,807
     
16,387
 
Computer equipment and software    
81,516
     
59,896
     
21,620
 
Leasehold improvements    
23,550
     
15,589
     
7,961
 
    $
224,643
    $
151,560
    $
73,083
 
December 31, 2015   Cost   Accumulated
depreciation
  Net
             
Land   $
2,519
    $
-
    $
2,519
 
Buildings    
10,231
     
4,028
     
6,203
 
Vehicles    
35,983
     
26,031
     
9,952
 
Furniture and equipment    
43,399
     
29,435
     
13,964
 
Computer equipment and software    
69,405
     
48,628
     
20,777
 
Leasehold improvements    
20,737
     
16,577
     
4,160
 
    $
182,274
    $
124,699
    $
57,575