Quarterly report pursuant to Section 13 or 15(d)

REVOLVING LINE OF CREDIT (Details Textual)

v3.3.0.814
REVOLVING LINE OF CREDIT (Details Textual) - USD ($)
1 Months Ended 9 Months Ended
Jul. 31, 2014
Sep. 30, 2015
Line of Credit Facility [Line Items]    
Line of Credit Facility, Maximum Borrowing Capacity $ 500,000,000 $ 100,000,000
Debt Instrument, Maturity Date Jun. 26, 2020  
Debt Instrument, Interest Rate During Period   1.00%
Leverage Ratio, Total   4.0 to 1.0
Minimum Leverage Ratio Current   1.0 to 1.0
Debt Instrument, Redemption, Description   The Borrowing Base will be redetermined semi-annually on each May 1 and November 1, beginning November 1, 2015.
Revolving Credit Facility [Member]    
Line of Credit Facility [Line Items]    
Line of Credit Facility, Interest Rate Description   0.5%
Line of Credit Facility, Fair Value of Amount Outstanding   $ 40,900,000
Maximum [Member]    
Line of Credit Facility [Line Items]    
Debt Instrument, Basis Spread on Variable Rate   2.75%
Debt Instrument, Interest Rate, Effective Percentage Rate Range, Maximum   3.75%
Minimum [Member]    
Line of Credit Facility [Line Items]    
Debt Instrument, Basis Spread on Variable Rate   1.75%
Debt Instrument, Interest Rate, Effective Percentage Rate Range, Minimum   2.75%