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Long-Term Debt (Details)
12 Months Ended
Dec. 31, 2015
USD ($)
determination
Rate
Mar. 31, 2017
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Feb. 17, 2016
USD ($)
Jan. 31, 2016
USD ($)
Dec. 31, 2014
USD ($)
Jul. 03, 2013
USD ($)
Aug. 19, 2010
USD ($)
Debt Instrument [Line Items]                      
Bank debt                 $ 75,000,000    
At least secured percentage value of oil and gas properties | Rate 90.00%                    
Maximum                      
Debt Instrument [Line Items]                      
Commitment fees on a sliding scale (as a percent) 0.50%                    
Minimum                      
Debt Instrument [Line Items]                      
Commitment fees on a sliding scale (as a percent) 0.375%                    
Borrower's liquidity (as a percent) 75.00%                    
Maximum ratio of EBITDAX to cash interest expense | Rate 100.00%                    
Federal Funds Effective Rate                      
Debt Instrument [Line Items]                      
Adjusted LIBO rate (as a percent) | Rate 0.50%                    
Adjusted London Inter Bank Offer Rate                      
Debt Instrument [Line Items]                      
Adjusted LIBO rate (as a percent) | Rate 1.00%                    
10% Senior Notes | Senior Notes                      
Debt Instrument [Line Items]                      
Principal amount                   $ 200,000,000 $ 150,000,000
Stated interest rate (as a percent) 10.00%               10.00% 10.00%  
Adjusted interest on notes payable $ 11,700,000                    
Credit Agreement                      
Debt Instrument [Line Items]                      
Revolving credit facility 300,000,000                    
Bank debt 0                    
Letters of credit outstanding, amount 0                    
Current borrowing base $ 55,000,000                    
Borrowing capacity utilization, expected, percent (first quarter of 2016) 25.00%                    
Borrowing capacity utilization, expected amount (first quarter of 2016) $ 10,500,000.0                    
Number of additional borrowing base re-determinations | determination 2                    
Minimum amount outstanding held by lenders for borrowing base approval, percent 66.70%                    
Credit Agreement | Letters of credit                      
Debt Instrument [Line Items]                      
Revolving credit facility $ 25,000,000                    
Period minimum for refinanced debt after original maturity date 180 days                    
Credit Agreement | Alternate Base Rate | Maximum                      
Debt Instrument [Line Items]                      
Adjusted LIBO rate (as a percent) | Rate 2.00%                    
Credit Agreement | Alternate Base Rate | Minimum                      
Debt Instrument [Line Items]                      
Adjusted LIBO rate (as a percent) | Rate 1.00%                    
Credit Agreement | Adjusted London Inter Bank Offer Rate                      
Debt Instrument [Line Items]                      
Variable rate, floor 0.00%                    
Credit Agreement | Adjusted London Inter Bank Offer Rate | Maximum                      
Debt Instrument [Line Items]                      
Adjusted LIBO rate (as a percent) | Rate 3.00%                    
Credit Agreement | Adjusted London Inter Bank Offer Rate | Minimum                      
Debt Instrument [Line Items]                      
Adjusted LIBO rate (as a percent) | Rate 2.00%                    
Scenario, Forecast | Credit Agreement                      
Debt Instrument [Line Items]                      
Debt to EBITDAX ratio, when unused availability greater or equal 75 percent     5.75 5.75 5.5 5.0          
Debt to EBITDAX ratio, when unused availability less than 75 percent   5 5.25 5.75 5.75 5.75          
Subsequent Event | Credit Agreement                      
Debt Instrument [Line Items]                      
Current borrowing capacity               $ 42,000,000      
Subsequent Event | Private Exchange Offer and Consent Solicitation                      
Debt Instrument [Line Items]                      
Adjusted interest on notes payable             $ 4,500,000        
Oklahoma | Credit Agreement                      
Debt Instrument [Line Items]                      
Reduction in borrowing base as result of sale of oil and gas assets (on or prior to March 31, 2016) $ 10,000,000