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Property and Equipment (Details Textual) (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2013
Per_Mcfe
Sep. 30, 2012
Per_Mcfe
Sep. 30, 2013
Per_Mcfe
Sep. 30, 2012
Per_Mcfe
Sep. 30, 2013
Unproved properties not subject to depletion [Member]
Dec. 31, 2012
Unproved properties not subject to depletion [Member]
Property and Equipment (Textual)            
Oil and gas properties, gross         $ 1,944,000 $ 1,126,000
Period of amortization of capital costs         5 years  
Capitalized overhead applicable to acquisition, development and exploration activities     347,000 400,000    
Depletion expense related to oil and gas properties 732,000 562,000 2,000,000 2,400,000    
Depletion expense related to oil and gas properties (in dollars per Mcfe) 1.01 0.85 94 1.19    
Impairment of oil and gas properties          15,407,000    
Depreciation and amortization expense      $ 94,000 $ 74,000