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Summary of Significant Accounting Policies, Derivatives by Hedging Relationship and Fair Value Measurements (Details) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Company's asset retirement obligations [Roll Forward]      
Balance on January 1, $ 1,886,000 $ 1,568,000  
Liabilities incurred 431,000 358,000  
Accretion of discount 85,000 63,000  
Liabilities settled (138,000) (103,000)  
Revisions to estimates 300,000 0  
Balance on December 31, 2,564,000 1,886,000  
Escrow cash 75,000    
Level 1 Quoted Prices [Member]
     
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Net Value 0 0  
Factors impacting the change in the net value of the Company's fair value contracts [Abstract]      
Net Fair Value January 1, 0 0  
Net realized (gains) losses 0 0  
Option deposit 0    
Net unrealized gains (losses) 0 0  
Net Fair Value December 31, 0 0  
Level 2 Observable [Member]
     
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Net Value 395,000 (27,000)  
Factors impacting the change in the net value of the Company's fair value contracts [Abstract]      
Net Fair Value January 1, (27,000) 1,338,000  
Net realized (gains) losses 27,000 (1,338,000)  
Option deposit 615,000    
Net unrealized gains (losses) (220,000) (27,000)  
Net Fair Value December 31, 395,000 (27,000)  
Total Fair Value [Member]
     
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Net Value 395,000 (27,000)  
Factors impacting the change in the net value of the Company's fair value contracts [Abstract]      
Net Fair Value January 1, (27,000) 1,338,000  
Net realized (gains) losses 27,000 (1,338,000)  
Option deposit 615,000    
Net unrealized gains (losses) (220,000) (27,000)  
Net Fair Value December 31, 395,000 (27,000)  
Fair Value, Measurements, Recurring [Member] | Level 1 Quoted Prices [Member]
     
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Derivatives - Current assets 0 0  
Derivatives - Current liabilities 0 0  
Net Value 0 0  
Factors impacting the change in the net value of the Company's fair value contracts [Abstract]      
Net Fair Value December 31, 0 0  
Fair Value, Measurements, Recurring [Member] | Level 2 Observable [Member]
     
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Derivatives - Current assets 449,000 354,000  
Derivatives - Current liabilities (54,000) (381,000)  
Net Value 395,000 (27,000)  
Factors impacting the change in the net value of the Company's fair value contracts [Abstract]      
Net Fair Value December 31, 395,000 (27,000)  
Fair Value, Measurements, Recurring [Member] | Level 3 Unobservable [Member]
     
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Derivatives - Current assets 0 0  
Derivatives - Current liabilities 0 0  
Net Value 0 0  
Factors impacting the change in the net value of the Company's fair value contracts [Abstract]      
Net Fair Value December 31, 0 0  
Fair Value, Measurements, Recurring [Member] | Counterparty Offsets [Member]
     
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Derivatives - Current assets (54,000) (270,000)  
Derivatives - Current liabilities 54,000 270,000  
Net Value 0 0  
Factors impacting the change in the net value of the Company's fair value contracts [Abstract]      
Net Fair Value December 31, 0 0  
Fair Value, Measurements, Recurring [Member] | Total Fair Value [Member]
     
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Derivatives - Current assets 395,000 84,000  
Derivatives - Current liabilities 0 (111,000)  
Net Value 395,000 (27,000)  
Factors impacting the change in the net value of the Company's fair value contracts [Abstract]      
Net Fair Value December 31, 395,000 (27,000)  
Commodity Contract [Member] | Revenues - marketing [Member] | Not Designated as Hedging Instrument [Member]
     
Earnings (loss) recognized in income [Abstract]      
Earnings (Loss) $ (193,000) $ (1,365,000) $ 119,000