Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document And Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Note 3 - East Tennessee Materials and Energy Corporation ("M&EC") Facility (Details Textual)

v3.5.0.2

Note 3 - East Tennessee Materials and Energy Corporation ("M&EC") Facility (Details Textual) - USD ($)	3 Months Ended			6 Months Ended	9 Months Ended
	Sep. 30, 2016	Jun. 30, 2016	Sep. 30, 2015	Jun. 30, 2016	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
M&EC [Member] \| Permit [Member]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)		$ 8,288,000		$ 8,288,000
Write-off of Fees, Incurred Related to Emission Performance Testing Certification Requirement				$ 587,000
M&EC [Member] \| Minimum [Member]
Property, Plant and Equipment, Useful Life				2 years
M&EC [Member] \| Maximum [Member]
Property, Plant and Equipment, Useful Life				28 years
M&EC [Member]
Property, Plant and Equipment, Useful Life				28 years
Tangible Asset Impairment Charges				$ 1,816,000
Property, Plant and Equipment, Net		$ 4,728,000		4,728,000
Revenue, Net					$ 3,458,000	$ 5,225,000
Net Property and Equipment [Member]
Asset Retirement Obligation, Revision of Estimate				$ 1,626,000
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)					8,288,000
Tangible Asset Impairment Charges					1,816,000
Property, Plant and Equipment, Net	17,924,000				17,924,000		$ 19,993,000
Revenue, Net	$ 12,921,000		$ 17,309,000		$ 37,768,000	$ 47,264,000

- Definition

Represents the write-off of fees that are incurred related to emission performance testing certification requirements.

+ References

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Amount of increase (decrease) in the asset retirement obligation from changes in the amount or timing of the estimated cash flows associated with the settlement of the obligation.

+ References

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Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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