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COMMITMENTS AND CONTINGENCIES (Detail Textuals) - USD ($) $ in Thousands | 1 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2017 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Commitments And Contingencies [Line Items] |  |  |  |
Rental expense for operating leases |  | $ 1,736 | $ 1,730 | $ 1,533
Maximum repurchase collateral amount |  | 54,093 | $ 45,196 |
Pennsylvania |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Total project cost |  | 24,700 |  |
Gain loss on sale of plant | $ 601 |  |  |
Ooltewah, Tennessee and Greeneville, Tennessee |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Estimated costs of project |  | 21,200 |  |
Capital cost incurred |  | 21,000 |  |
Current estimated costs of administrative building |  | 4,200 |  |
Current cost of administrative building incurred |  | $ 1,581 |  |

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- Definition This element represents amount of capital cost incurred. + References No definition available. + Details
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- Definition Line item represents information regarding commitments and contingencies. + References No definition available. + Details
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- Definition Represents information about current cost of administrative building incurred. + References No definition available. + Details
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- Definition Represents current estimated costs of administrative building. + References No definition available. + Details
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- Definition This element represents estimated cost of the project. + References No definition available. + Details
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Balance Type: | debit
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- Definition The gains and losses included in earning resulting from the sale of a plant. + References No definition available. + Details
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- Definition The maximum potential amount of collateral that the company could be required to purchase during the period. + References No definition available. + Details
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- Definition Represents information about total project cost. + References No definition available. + Details
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- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41499-112717 + Details
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- Details
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- Details
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