XML 56 R23.htm IDEA: XBRL DOCUMENT v2.4.0.6
Organization and Summary of Significant Accounting Policies (Tables)
6 Months Ended
Jun. 30, 2012
Organization and Summary of Significant Accounting Policies (Tables) [Abstract]  
Change in ARO (asset retirement obligation)
        
  Balance at January 1, 2012 $ 145 
   Accretion expense   6 
   Additions   5 
   Revisions   6 
   Settlements   (15) 
  Balance at June 30, 2012   147 
  Less: Current portion of ARO at June 30, 2012   (10) 
  Total long-term ARO at June 30, 2012 $ 137