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Long-Term Debt (Details) (USD $)
6 Months Ended 6 Months Ended 0 Months Ended
Jun. 30, 2014
Dec. 31, 2013
Jun. 30, 2014
Minimum [Member]
Jun. 30, 2014
Maximum [Member]
Jun. 30, 2014
Senior Secured Credit facility [Member]
Dec. 31, 2013
Senior Secured Credit facility [Member]
Jun. 30, 2014
Rig loan agreement [Member]
Dec. 31, 2013
Rig loan agreement [Member]
Feb. 14, 2012
Rig loan agreement [Member]
Sep. 19, 2011
Rig loan agreement [Member]
hp
Jul. 20, 2013
Real estate lien note [Member]
Jun. 30, 2014
Real estate lien note [Member]
Dec. 31, 2013
Real estate lien note [Member]
Apr. 04, 2013
Real estate lien note [Member]
May 09, 2008
Real estate lien note [Member]
Long-term debt [Abstract]                              
Long-term debt $ 47,031,000 $ 43,932,000     $ 37,000,000 $ 33,000,000 $ 5,586,000 $ 6,378,000       $ 4,445,000 $ 4,554,000    
Less current maturities (2,181,000) (2,142,000)                          
Long-term debt, excluding current maturities 44,850,000 41,790,000                          
Credit Facility [Abstract]                              
Maximum borrowing capacity         300,000,000                    
Current borrowing base         162,500,000                    
Term of borrowing base redetermination         6 months                    
Market value of property (in hundredths)         5.00%                    
Reduced collateral value (in hundredths)         5.00%                    
Percentage added to variable rate of interest (in hundredths)     1.75% 2.75%                      
Description of variable rate basis         LIBOR                    
Percentage added to reference rate (in hundredths) 0.50%   0.75% 1.75%                      
Interest rate on credit facility (in hundredths)         1.90%                    
Financial covenants, minimum current ratio         1.00                    
Financial covenants, interest coverage ratio         2.50                    
Financial covenants, total debt To EBITDAX ratio         4.00                    
Interest coverage ratio         20.66                    
Total debt to EBITDAX ratio         0.62                    
Current ratio         2.34                    
Rig Loan Agreement [Abstract]                              
Power of diesel electric drilling rig (in horsepower)                   2,000          
Maximum amount that can be borrowed under rig loan agreement             5,600,000   7,000,000           5,400,000
Interest rate on debt (in hundredths)                 4.26%            
Real Estate Lien Note [Abstract]                              
Fixed interest rate on note (in hundredths)                           4.00%  
Monthly installments of principal and interest                     34,354        
Debt Instrument, Basis Spread on Variable Rate, Expected Rate                       1.00%      
Maturity date of note                     Jul. 20, 2023        
Maximum rate on variable rate note                     7.25%        
Long Term Debt, Amortization Term                     20 years        
Line of Credit Facility, Amount Outstanding                       $ 4,400,000