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East Tennessee Materials and Energy Corporation (“M&EC”) (Details Narrative) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016 | Dec. 31, 2016
Tangible asset impairment charges | $ 672 |  | $ 672 | $ 1,816 |
Accrued closure costs - current | 2,927 |  | 2,927 |  | $ 2,177
Long-term closure liabilities | 4,297 |  | 4,297 |  | 5,138
Adjustment to closure liability |  |  | 550 |  |
Revenue, net | 11,758 | 12,921 | $ 37,179 | 37,768 |
M&EC [Member] |  |  |  |  |
Lease term |  |  | Jan. 21, 2018 |  |
Tangible asset impairment charges | 672 |  | $ 672 | 1,816 |
Accrued closure costs - current | 2,927 |  | 2,927 |  |
Long-term closure liabilities |  |  |  |  | $ 881
Adjustment to closure liability | 550 |  | 550 |  |
Revenue, net | $ 578 | $ 703 | $ 5,650 | $ 3,458 |

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