Annual report pursuant to Section 13 and 15(d)

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

Summary of significant accounting policies - Revenue by Product Line and Services (Details)

v3.3.1.900

Summary of significant accounting policies - Revenue by Product Line and Services (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Revenue by Producks and Services [Line Items]
Products	$ 10,055,237	$ 8,625,034
Services	11,387,420	10,717,630
Total revenues	21,442,657	19,342,664
Cogeneration
Revenue by Producks and Services [Line Items]
Products	7,882,838	5,364,810
Chiller
Revenue by Producks and Services [Line Items]
Products	2,172,399	3,260,224
Service contracts
Revenue by Producks and Services [Line Items]
Services	7,832,181	7,438,125
installations
Revenue by Producks and Services [Line Items]
Services	$ 3,555,239	$ 3,279,505

- Definition

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+ 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))
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
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