The number of shares acquired by the entity during the period.

No definition available.

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- Definition

Amount of accrued expenses and other liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

+ References

No definition available.

+ Details

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- Definition

Amount of receivable reflecting the cost incurred on uncompleted contracts in excess of related billing, assumed at the acquisition date.

+ References

No definition available.

+ Details

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- Definition

Carrying value as of the balance sheet date of obligations, excluding pension and other postretirement benefits, incurred through that date and payable for perquisites provided to employees pertaining to services received from them, assumed at the acquisition date.

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Refers to common shares attributable to noncontrolling interest entity.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

This element represents the fair value of the noncontrolling interest in the acquiree at the acquisition date.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of assets acquired at the acquisition date.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

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Balance Type:	debit
Period Type:	instant

- Definition

Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date.

+ References

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Period Type:	instant

- Definition

Amount of liabilities incurred for goods and services received that are used in an entity's business and related party payables, assumed at the acquisition date.

+ References

+ Details

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Period Type:	instant

- Definition

Amount of long-term debt due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

+ References

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Period Type:	instant

- Definition

Amount of deferred tax liability attributable to taxable temporary differences due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

+ References

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

The amount of identifiable intangible assets recognized as of the acquisition date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (c)

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 55

-Paragraph 37

-URI http://asc.fasb.org/extlink&oid=35744172&loc=d3e2207-128464

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of inventory recognized as of the acquisition date.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of liabilities assumed at the acquisition date.

+ References

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

+ References

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

+ References

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- Definition

Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of property, plant, and equipment recognized as of the acquisition date.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount recognized as of the acquisition date for the assets, including goodwill, in excess of (less than) the aggregate liabilities assumed, less the noncontrolling interest in the acquiree.

+ References

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- Definition

Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

+ References

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- Definition

Number of shares issued for each share of convertible preferred stock that is converted.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

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-Publisher SEC

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-Section 02

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-Topic 505

-SubTopic 10

-Section 50

-Paragraph 6

-Subparagraph (b)

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- Definition

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, resulting from a business combination.

+ References

No definition available.

+ Details

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

+ Details

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 13

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585

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BUSINESS COMBINATIONS, AMERICAN NATURAL GAS Acquisition (Details) (USD $)	3 Months Ended	0 Months Ended
	Mar. 31, 2015	Aug. 01, 2014	Dec. 31, 2014	May 29, 2014
Business Acquisition [Line Items]
Percentage of ownership interest acquired (in hundredths)				60.00%
Business Combination, purchase price allocation [Abstract]
Goodwill	$ 27,990,000us-gaap_Goodwill		$ 27,990,000us-gaap_Goodwill
Preliminary estimated value	0
Trade Names [Member]
Business Combination, purchase price allocation [Abstract]
Preliminary estimated value	0
Developed Technology [Member]
Business Combination, purchase price allocation [Abstract]
Preliminary estimated value	0
American Natural Gas [Member]
Business Acquisition [Line Items]
Percentage of ownership interest acquired (in hundredths)		51.00%
Minority interest percentage by noncontrolling interest (in hundredths)		49.00%
Fair value of noncontrolling interest		2,200,000
Business Combination, purchase price allocation [Abstract]
Cash and cash equivalents		204,000
Accounts receivable		306,000
Prepaid expenses and other current assets		31,000
Inventories		27,000
Property and equipment, net		1,921,000
Goodwill		10,826,000
Other assets		2,000
Total assets acquired		22,317,000
Accounts payable		49,000
Accrued payroll and employee benefits		5,000
Accrued expenses and other current liabilities		26,000
Billings in excess of costs and recognized earnings on uncompleted contracts		114,000
Current portion of long-term debt		34,000
Long-term debt		870,000
Deferred tax liability		3,530,000
Total liabilities assumed		4,628,000
Enterprise value		17,689,000
Less fair value of noncontrolling interest		2,189,000
Purchase price attributable to controlling interest		15,500,000
Preliminary estimated value	0	9,000,000
American Natural Gas [Member] \| Series A Convertible Preferred Stock [Member]
Business Acquisition [Line Items]
Business acquisition cost		15,500,000
Number of shares acquired (in shares)		15,500
American Natural Gas [Member] \| Common Stock [Member]
Business Acquisition [Line Items]
Preferred stock converted into number of common stock (in shares)		1,033,333
Noncontrolling interest represent to number of common stock (in shares)		1,000,000
American Natural Gas [Member] \| Trade Names [Member]
Business Combination, purchase price allocation [Abstract]
Intangibles		6,300,000
Preliminary estimated useful lives		10 years
Preliminary estimated value	0	6,300,000
American Natural Gas [Member] \| Customer Contracts [Member]
Business Combination, purchase price allocation [Abstract]
Intangibles		2,700,000
Preliminary estimated useful lives		10 years
Preliminary estimated value		2,700,000
American Natural Gas [Member] \| Developed Technology [Member]
Business Combination, purchase price allocation [Abstract]
Preliminary estimated value	$ 0