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Inventory
 12 Months Ended
Dec. 31, 2016
Inventory Disclosure [Abstract]  
Inventory Disclosure [Text Block]
5. Inventory
 
 
 
December 31,
 
 
 
2016
 
2015
 
Water stock
 
$
23,905
 
$
27,670
 
Consumables stock
 
 
143,028
 
 
152,350
 
Spare parts stock
 
 
6,745,034
 
 
6,297,082
 
Total inventory
 
 
6,911,967
 
 
6,477,102
 
Less current portion
 
 
2,305,879
 
 
1,918,728
 
Inventory (non-current)
 
$
4,606,088
 
$
4,558,374