Quarterly report pursuant to Section 13 or 15(d)

East Tennessee Materials and Energy Corporation (M&EC) - Schedule of Change in Asset Retirement Obligation (Details)

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East Tennessee Materials and Energy Corporation (M&EC) - Schedule of Change in Asset Retirement Obligation (Details)
$ in Thousands
9 Months Ended
Sep. 30, 2018
USD ($)
Asset Retirement Obligation Disclosure [Abstract]  
Balance as of December 31, 2017 $ 2,791
Accretion expense 19
Adjustment to closure liabilities 2,308
Payments (4,079)
Balance as of September 30, 2018 $ 1,039