BASIS OF PRESENTATION (Details) $ in Thousands	6 Months Ended
Jun. 30, 2018 USD ($) segment
Description of Business
Number of reportable segments \| segment	3
Revenue as a percentage of sales associated with new wind turbine installations	57.00%
RESTRUCTURING
Restructuring Costs	$ 267
Liquidity
Total debt and capital lease obligations	21,345
Obligation to make principal payments on outstanding debt during the next twelve months	18,804
Outstanding indebtedness under the Credit Facility	14,516
NMTC note payable	2,600
New Markets Tax Credit Transaction
Liquidity
NMTC note payable	$ 2,600

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Represents the revenue as a percentage of sales associated with new wind turbine installations.

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Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

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Fair value of the amount outstanding under the credit facility.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Amount of borrowings from a creditor other than a bank with a maturity within one year or operating cycle, if longer.

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