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Note 7 - Property and Equipment (Tables)

6 Months Ended

Jun. 30, 2017

Notes Tables

Property, Plant and Equipment [Table Text Block]

		June 30, 2017				December 31, 2016
Construction equipment		$	120,991			$	121,441
Transportation equipment			19,060				19,017
Buildings			8,713				12,771
Office equipment			3,108				3,108
Leasehold improvement			914				914
Construction in progress			317				313
Land			3,509				3,509
Water rights			200				200
			156,812				161,273
Less accumulated depreciation			(95,537	)			(93,146	)
Total property and equipment, net		$	61,275			$	68,127

X

- 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 360
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: 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

+ Details

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Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_TableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration