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Unsecured Revolving Credit Agreement (Details) - Texas Capital Bank, N.A.
 6 Months Ended
Feb. 29, 2012
USD ($)
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Revolving credit facility      
Unsecured Revolving Credit Agreement      
Maximum amount available under revolving credit facility $ 50,000,000    
Initial borrowing base 5,000,000 $ 5,000,000  
Term of revolving credit facility   4 years  
Value of oil and gas properties subject (as a percent)   25.00%  
Commitment fee accruing on unutilized availability (as a percent)   0.50%  
Loan costs to be compensated to lender over the life of the Credit Agreement   $ 50,000  
Outstanding borrowings   0 $ 0
Debt issuance costs 179,468    
Unamortized debt issuance costs   8,093  
Revolving credit facility | Delhi field      
Unsecured Revolving Credit Agreement      
Deferred legals fee   50,414  
Costs incurred for title work related to the Dehli Field   $ 108,472  
Revolving credit facility | Minimum      
Unsecured Revolving Credit Agreement      
Total funded indebtedness to EBITDA ratio   3  
Revolving credit facility | Maximum      
Unsecured Revolving Credit Agreement      
Current ratio   1.5  
Total funded indebtedness to EBITDA ratio   2.5  
EBITDA to interest expense ratio   3  
Revolving credit facility | LIBOR      
Unsecured Revolving Credit Agreement      
Variable interest rate basis   Adjusted LIBOR  
Interest period one   1 month  
Interest period two   2 months  
Interest period three   3 months  
Interest period four   6 months  
Term for payment of interest   3 months  
Revolving credit facility | Prime rate      
Unsecured Revolving Credit Agreement      
Variable interest rate basis   Lender’s prime rate  
Revolving credit facility | Federal funds rate      
Unsecured Revolving Credit Agreement      
Variable interest rate basis   Federal Funds Rate  
Margin added to variable interest rate basis (as a percent)   0.50%  
Letter of credit      
Unsecured Revolving Credit Agreement      
Maximum amount available under revolving credit facility $ 1,000,000    
Term of revolving credit facility   1 year  
Letter of credit fees rate applied to principal amounts (as a percent)   3.50%  
Outstanding borrowings   $ 0 $ 0