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Property and Equipment (Tables)
3 Months Ended
Mar. 31, 2013
Schedule of Property, Plant and Equipment [Table Text Block]
                  March 31,     December 31,  
                  2013     2012  
            Accumulated     Net Carrying     Net Carrying  
      Cost     Depreciation     Value     Value  
                   
                           
  Computers and office equipment   326,578     221,412     105,166     97,999  
  Field equipment   1,317,919     869,639     448,280     493,602  
      1,644,497     1,091,051     553,446     591,601