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Long-Term Debt - Senior Revolving Credit Facility - Additional Information (Details) - USD ($)
6 Months Ended
Jul. 27, 2016
Jul. 28, 2015
Jun. 30, 2016
Dec. 31, 2015
Debt Instrument [Line Items]        
Revolving credit facility     $ 99,500,000 $ 87,000,000
Senior Secured Credit Facility        
Debt Instrument [Line Items]        
Letter of credit sub limit     $ 2,500,000  
Senior Secured Credit Facility | Minimum        
Debt Instrument [Line Items]        
Commitment fee percentage     0.375%  
Senior Secured Credit Facility | Maximum        
Debt Instrument [Line Items]        
Commitment fee percentage     0.50%  
Third Amendment to Credit Agreement and Limited Waiver (the “Amendment”) | Subsequent Event        
Debt Instrument [Line Items]        
Line of credit facility commitment fee percentage 0.50%      
Leverage ratio 400.00%      
Third Amendment to Credit Agreement and Limited Waiver (the “Amendment”) | Subsequent Event | Letter of Credit        
Debt Instrument [Line Items]        
Increase margin on loans 0.75%      
Third Amendment to Credit Agreement and Limited Waiver (the “Amendment”) | Quarter Period Ending June 30, 2016 | Subsequent Event        
Debt Instrument [Line Items]        
Leverage ratio 475.00%      
Third Amendment to Credit Agreement and Limited Waiver (the “Amendment”) | Quarter Period Ending September 30, 2016 | Subsequent Event        
Debt Instrument [Line Items]        
Leverage ratio 450.00%      
Third Amendment to Credit Agreement and Limited Waiver (the “Amendment”) | Quarter Period Ending December 31, 2016 | Subsequent Event        
Debt Instrument [Line Items]        
Leverage ratio 425.00%      
Third Amendment to Credit Agreement and Limited Waiver (the “Amendment”) | All Periods Thereafter | Subsequent Event        
Debt Instrument [Line Items]        
Leverage ratio 400.00%      
Third Amendment to Credit Agreement and Limited Waiver (the “Amendment”) | ABR | Subsequent Event        
Debt Instrument [Line Items]        
Increase margin on loans 0.75%      
Third Amendment to Credit Agreement and Limited Waiver (the “Amendment”) | Eurodollar | Subsequent Event        
Debt Instrument [Line Items]        
Increase margin on loans 0.75%      
Citibank N A | Senior Secured Credit Facility        
Debt Instrument [Line Items]        
Debt instrument expanded borrowing base       180,000,000
Debt instrument maturity date   Oct. 16, 2018    
Revolving credit facility     $ 99,500,000 $ 87,000,000
Citibank N A | Senior Secured Credit Facility | LIBOR        
Debt Instrument [Line Items]        
Debt instrument basis spread on variable rate   0.25%    
Wells Fargo Led Facility        
Debt Instrument [Line Items]        
Debt instrument face amount   $ 400,000,000    
LRAI | Senior Secured Credit Facility | Maximum        
Debt Instrument [Line Items]        
Lien percentage of assets for credit facility     80.00%  
LRAI | Senior Secured Credit Facility | LIBOR        
Debt Instrument [Line Items]        
Debt instrument basis spread on variable rate   1.00%    
Margin of loans, minimum   1.75%    
Margin of loans, maximum   2.75%    
LRAI | Senior Secured Credit Facility | Federal Funds Effective Rate        
Debt Instrument [Line Items]        
Debt instrument basis spread on variable rate   0.50%    
LRAI | Senior Secured Credit Facility | ABR        
Debt Instrument [Line Items]        
Margin of loans, minimum   0.75%    
Margin of loans, maximum   1.75%    
LRAI | Third Amendment to Credit Agreement and Limited Waiver (the “Amendment”) | Minimum        
Debt Instrument [Line Items]        
Percentage of value of oil and gas properties that must be mortgaged as collateral   80.00%    
LRAI | Third Amendment to Credit Agreement and Limited Waiver (the “Amendment”) | Minimum | Subsequent Event        
Debt Instrument [Line Items]        
Percentage of value of oil and gas properties that must be mortgaged as collateral 90.00%      
LRAI | Citibank N A | Senior Secured Credit Facility        
Debt Instrument [Line Items]        
Debt instrument face amount   $ 500,000,000