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Noncontrolling interests (Details) (USD $)
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3 Months Ended | 3 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|
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Mar. 31, 2014
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Mar. 31, 2013
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Mar. 31, 2014
Ilios
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Dec. 31, 2013
Ilios
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Dec. 31, 2010
Ilios
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Mar. 31, 2014
Ilios
Private placement to accredited investors
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Mar. 31, 2014
Ilios
Private placement to Tecogen
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Mar. 31, 2013
Ilios
Private placement to Tecogen
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Dec. 31, 2013
Ilios
Private placement to Tecogen
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| Noncontrolling Interest [Line Items] | |||||||||
| The Company's ownership percentage in subsidiary | 65.00% | 67.40% | 63.00% | ||||||
| Subsidiary cumulative number of shares sold | 1,000,000 | 1,000,000 | 1,500,000 | ||||||
| Subsidiary sale of stock, price in usd per share | $ 0.50 | $ 0.50 | $ 0.50 | ||||||
| Subsidiary aggregate proceeds from stock transactions | $ 500,000 | $ 500,000 | $ 750,000 | ||||||
| Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Change Due to Net Income Attributable to Parent and Effects of Changes, Net [Abstract] | |||||||||
| Loss available to stockholders | $ (1,020,045) | $ (860,393) | |||||||
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
The parent entity's interest in net assets of the subsidiary, expressed as a percentage. No definition available.
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| X | ||||||||||
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- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Cumulative number of shares issued or sold by the subsidiary or equity method investee on all stock transactions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Cumulative amount of cash and other consideration received by subsidiary or equity method investee in exchange for shares or stock issued or sold. Include amounts of cash received, fair value of non-cash assets received, fair value of liabilities assumed, and fair value of any other forms of consideration. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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