Quarterly report pursuant to Section 13 or 15(d)

SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details)

v3.10.0.1
SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2018
USD ($)
revenue_source
geographic_area
shares
Jun. 30, 2017
USD ($)
shares
Jun. 30, 2018
USD ($)
revenue_source
geographic_area
shares
Jun. 30, 2017
USD ($)
shares
Dec. 31, 2017
USD ($)
May 18, 2015
USD ($)
May 13, 2013
USD ($)
Accounts Receivable, Net [Abstract]              
Allowance for doubtful accounts $ 5,200,000   $ 5,200,000   $ 5,600,000    
Advance to Operators [Abstract]              
Period for advance payments to be applied against joint interest billings     90 days        
Property, Plant and Equipment [Abstract]              
Depreciation expense 31,668 $ 41,313 $ 67,185 $ 85,787      
Debt Issuance Costs [Abstract]              
Amortization of debt issuance costs 1,300,000 1,000,000 2,634,689 1,910,243      
Write-off of debt issuance costs $ 0 $ 95,135 $ 0 $ 95,135      
Bond Premium/Discount on Senior Notes [Abstract]              
Interest rate (percent) 8.00%   8.00%        
Revenue Recognition              
Revenue from contract with customer, number of revenue sources | revenue_source 2   2        
Number of geographic areas in which entity operates | geographic_area 1   1        
Income Taxes [Abstract]              
Valuation allowance $ 249,600,000   $ 249,600,000   227,000,000    
Potentially dilutive shares (in shares) | shares 0 242,090 0 383,244      
Impairment of other long-lived assets $ 0 $ 0 $ 0 $ 0      
Senior Notes Due 2020              
Bond Premium/Discount on Senior Notes [Abstract]              
Amortization of bond premium 200,000 400,000 500,000 700,000      
Amortization of bond discount 200,000 500,000 $ 700,000 $ 1,000,000      
Senior Unsecured Notes | Senior Notes Due 2020              
Bond Premium/Discount on Senior Notes [Abstract]              
Bond premium           $ 10,000,000 $ 10,500,000
Capitalized costs associated with bond premium/discount           $ 10,000,000 $ 10,500,000
Interest rate (percent)           8.00% 8.00%
Minimum              
Property, Plant and Equipment [Abstract]              
Property and equipment, estimated useful lives     3 years        
Maximum              
Property, Plant and Equipment [Abstract]              
Property and equipment, estimated useful lives     7 years        
Other Noncurrent Assets, Net              
Accounts Receivable, Net [Abstract]              
Loss contingency accounts receivable 5,300,000   $ 5,300,000        
Accounts receivable         $ 5,500,000    
Stock Options              
Income Taxes [Abstract]              
Potentially dilutive shares (in shares) | shares     250,000 391,872      
Restricted Stock Awards              
Income Taxes [Abstract]              
Potentially dilutive shares (in shares) | shares     3,327,127 2,102,264      
Oil              
Revenue Recognition              
Revenue from contract with customer, excluding assessed tax 101,000,000 43,500,000          
Natural Gas and NGL              
Revenue Recognition              
Revenue from contract with customer, excluding assessed tax $ 8,000,000 $ 4,800,000