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Inventory (Tables)
 12 Months Ended
Dec. 31, 2013
Inventory Disclosure [Abstract]  
Schedule Of Inventory [Table Text Block]
 
 
 
December 31,
 
 
 
2013
 
2012
 
Water stock
 
$
28,222
 
$
32,515
 
Consumables stock
 
 
224,584
 
 
276,568
 
Spare parts stock
 
 
5,334,418
 
 
5,418,759
 
Total inventory
 
 
5,587,224
 
 
5,727,842
 
Less current portion
 
 
1,383,135
 
 
1,757,601
 
Inventory (non-current)
 
$
4,204,089
 
$
3,970,241