Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Description of business and summary of significant accounting policies (Policies)
Notes Tables
Notes Details

Description of business and summary of significant accounting policies - Revenue by Product Line and Services (Details)

v2.4.1.9

Description of business and summary of significant accounting policies - Revenue by Product Line and Services (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Revenue by Producks and Services [Line Items]
Products	$ 3,537,875us-gaap_SalesRevenueGoodsNet	$ 1,944,776us-gaap_SalesRevenueGoodsNet
Services	2,565,559us-gaap_SalesRevenueServicesNet	2,270,981us-gaap_SalesRevenueServicesNet
Total revenues	6,103,434us-gaap_SalesRevenueNet	4,215,757us-gaap_SalesRevenueNet
Cogeneration
Revenue by Producks and Services [Line Items]
Products	2,571,928	1,154,269
Chiller
Revenue by Producks and Services [Line Items]
Products	965,947	790,507
Service Contracts [Member]
Revenue by Producks and Services [Line Items]
Services	1,872,366	1,772,981
Installations [Member]
Revenue by Producks and Services [Line Items]
Services	$ 693,193	$ 498,000

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Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1(a))

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+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

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