DERIVATIVE INSTRUMENTS (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
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Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
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DERIVATIVE INSTRUMENTS [Abstract] | |||
Feedstock and natural gas usage to operating expenses | 68.30% | 62.20% | 69.30% |
Derivative [Line Items] | |||
Unrealized gain (loss) | $ 58 | $ 119 | $ 381 |
Interest Rate Swaps [Member] | |||
Derivative [Line Items] | |||
Term loan in pay fixed, receive variable interest rate swap | 10,000 | ||
Term loan secured by plant, pipeline and equipment | $ 14,000 | ||
Derivative, variable interest rate | 5.83% | ||
Fair value of derivative liability | $ 0 | 58 | |
Not Designated as Hedging Instrument [Member] | Commodity Financial Instruments [Member] | |||
Derivative [Line Items] | |||
Realized gain (loss) | 0 | 0 | (180) |
Unrealized gain (loss) | 0 | 0 | 180 |
Net loss | $ 0 | $ 0 | $ 0 |
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- Definition Feedstock and natural gas usage as a percentage of operating expenses for the period. No definition available.
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- Definition The carrying amount of the loan in a pay fixed, receive variable interest rate swap agreement. No definition available.
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- Definition Face (par) amount of debt instrument at time of issuance. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Fair value, after the 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 not subject to a master netting arrangement and not elected to be offset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Variable interest rate in effect as of the balance sheet date related to the interest rate derivative. No definition available.
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- Definition The difference between the book value and the sale price of options, swaps, futures, forward contracts, and other derivative instruments. This element refers to the gain (loss) included in earnings. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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