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JOINT VENTURES/NON-CONTROLLING INTERESTS (Tables)
6 Months Ended
Jun. 30, 2016
Schedule of Non-controlling Interests [Table Text Block]
    June 30,     December 31,  
    2016     2015  
             
Gerlach Geothermal LLC interest held by Gerlach Green Energy, LLC $ 208,389   $ 213,882  
Oregon USG Holdings LLC interest held by Enbridge Inc.   24,703,382     25,353,058  
Raft River Energy I LLC interest held by Goldman Sachs   1,330,122     2,044,984  
  $ 26,241,893   $ 27,611,924