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Revenue Participation Rights (Details) (USD $)
Jun. 30, 2012
Dec. 31, 2011
Participating revenue rights    
Participating revenue rights $ 8,400,000 $ 8,400,000
"Cambridge" project [Member]
   
Participating revenue rights    
Participating revenue rights 825,000 825,000
"Republic" (now "Seattle") project [Member]
   
Participating revenue rights    
Participating revenue rights 62,500 62,500
Galt Resources, LLC [Member]
   
Participating revenue rights    
Participating revenue rights $ 7,512,500 $ 7,512,500