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Fair Value Measurements (Details Textual) (USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Fair Value Measurements (Additional Textual) [Abstract]      
Additions to asset retirement obligations $ 1,200,000 $ 200,000  
Drilling rig [Member]
     
Fair Value Measurements (Textual) [Abstract]      
Impairment charge for equipments held in inventory 425,000 17,500 50,000
Pipe and other equipment [Member]
     
Fair Value Measurements (Textual) [Abstract]      
Impairment charge for equipments held in inventory $ 60,464 $ 22,276 $ 0