Quarterly report pursuant to Section 13 or 15(d)

Reconciliation of Asset Retirement Obligations (Detail)

v2.4.0.8
Reconciliation of Asset Retirement Obligations (Detail) (USD $)
9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Dec. 31, 2013
Asset Retirement Obligations [Line Items]      
Beginning balance $ 682,203    
Liabilities incurred 0    
Accretion expense 49,712 50,034  
Payment on liability (36,250)    
Ending balance 695,665    
Less current asset retirement obligations (154,398)   (159,782)
Long-term asset retirement obligations 541,267 31,000 522,421
Asset retirement obligations $ 695,665