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Property, Plant and Equipment, net (Tables)

9 Months Ended

12 Months Ended

Sep. 30, 2016

Dec. 31, 2015

Property, Plant and Equipment [Abstract]

Schedule of Net Property, Plant and Equipment

Net property, plant and equipment consists of:

		September 30, 2016				December 31, 2015
Machinery, equipment and tooling		$	4,809			$	4,673
Vehicles			953				952
Furniture and fixtures			303				303
Plant and building			64,387				64,001
Real estate properties			3,504				3,500
Railroad and sidings			7,920				7,868
Land and improvements			13,317				12,977
Asset retirement obligation			1,135				1,135
Mineral properties			9,785				9,785
Deferred mining costs			417				155
Construction in progress			16,517				16,637
			123,047				121,986
Less: accumulated depreciation and depletion			17,752				13,058
Total property, plant and equipment, net		$	105,295			$	108,928

Property, plant and equipment consists of the following at December 31, 2015 and 2014:

		2015				2014
Machinery, equipment and tooling		$	4,673			$	4,011
Vehicles			952				733
Furniture and fixtures			303				206
Plant and building			64,001				43,785
Real estate properties			3,500				2,131
Railroad and sidings			7,868				7,193
Land and improvements			12,977				9,132
Asset retirement obligation			1,135				1,748
Mineral properties			9,785				9,734
Deferred mining costs			155				—
Construction in progress			16,637				14,941
			121,986				93,614
Less: accumulated depreciation and depletion			13,058				7,799
Property, plant and equipment, net		$	108,928			$	85,815

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- References

No definition available.

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- Definition

Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.13)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 13
-Subparagraph b
-Article 5

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