COMMODITY PRICE RISK MANAGEMENT (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Derivative Liability, Fair Value, Net [Abstract]
Realized derivative (loss) gain	$ 316	$ (338)	$ 21
Unrealized derivative (loss) gain	266us-gaap_UnrealizedGainLossOnDerivatives	(737)us-gaap_UnrealizedGainLossOnDerivatives	1,070us-gaap_UnrealizedGainLossOnDerivatives
Total realized and unrealized derivative (loss) gain	582	(1,075)	1,091
Current Asset [Member] \| Crude Oil Derivative Contract [Member]
Derivative Asset, Fair Value, Net [Abstract]
Derivative Assets, Fair Gross		345
Derivative Asset, Gross amount offset in		(331)
Derivative Asset, Net amount of assets		14
Current Liability [Member] \| Crude Oil Derivative Contract [Member]
Derivative Liability, Fair Value, Net [Abstract]
Derivative Liability, Gross		611
Derivative Liabilities, Gross amount offset in		(331)
Derivative Liability, Net amount of assets		$ 280

Fair value of liability associated with financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 20

-Section 55

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Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Fair value, after offset of derivative liability, of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, before offset against an obligation to return collateral under a master netting arrangement. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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Fair value, after offset of derivative asset, of financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, elected not to be and before offset against a right to receive collateral under a master netting arrangement. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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Fair value of asset associated with financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

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Gain (loss) incurred in risk management activities.

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The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.

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