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Organization and Summary of Significant Accounting Policies (Tables)
9 Months Ended
Sep. 30, 2012
Organization and Summary of Significant Accounting Policies [Abstract]  
Change in ARO (asset retirement obligation)
        
  Balance at January 1, 2012 $ 145 
   Accretion expense   8 
   Additions   8 
   Revisions   12 
   Settlements   (24) 
  Balance at September 30, 2012   149 
  Less: Current portion of ARO at September 30, 2012   (6) 
  Total long-term ARO at September 30, 2012 $ 143