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Basis of Financial Statement Presentation and Significant Accounting Policies (Tables)
 3 Months Ended
Mar. 31, 2013
Basis of Financial Statement Presentation and Significant Accounting Policies [Abstract]  
Changes to asset retirement obligations
                 
    2013     2012  

Asset retirement obligations at beginning of period

   $ 28,317     $ 256,651  

Liabilities incurred during the period

     —         —    

Accretion expense

     920       5,471  
   

 

 

    

 

 

  

Asset retirement obligations at end of period

   $ 29,237     $ 262,122