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Related party transactions (Details) (USD $)
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3 Months Ended | 6 Months Ended | 0 Months Ended | 6 Months Ended | 0 Months Ended | 6 Months Ended | 0 Months Ended | 3 Months Ended | 0 Months Ended | 0 Months Ended | 6 Months Ended | 0 Months Ended | 3 Months Ended | 6 Months Ended | 0 Months Ended | 6 Months Ended | 0 Months Ended | 0 Months Ended | 0 Months Ended | ||||||||||||||||||||||||||||||||||
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Jun. 30, 2013
company
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Jun. 30, 2013
sqft
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Jun. 30, 2012
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Dec. 31, 2012
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Mar. 14, 2013
Prepayment from Related Party for Future Purchases [Member]
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Jun. 30, 2013
Prepayment from Related Party for Future Purchases [Member]
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Jun. 30, 2013
Affiliated companies
Sublease under operating leased assets
Office space and warehouse facilities
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Jun. 30, 2012
Affiliated companies
Sublease under operating leased assets
Office space and warehouse facilities
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Oct. 20, 2009
Affiliated companies
American DG Energy
|
Jun. 30, 2013
Affiliated companies
American DG Energy
|
Jun. 30, 2012
Affiliated companies
American DG Energy
|
Dec. 31, 2012
Affiliated companies
American DG Energy
|
May 11, 2009
Management
|
May 11, 2009
Management
Convertible debentures
|
Jun. 30, 2013
Management
Convertible debentures
|
Sep. 24, 2001
Management
Convertible debentures
|
Jun. 30, 2013
Management
Convertible debentures
Common stock
|
Sep. 24, 2011
Management
Convertible debentures
Common stock
|
May 11, 2009
Management
Demand notes
|
May 11, 2009
Management
Ilios
|
Sep. 24, 2001
Member of board of directors
Convertible debentures
|
May 11, 2009
Member of board of directors
Convertible debentures
Conversion of principal amount
|
Sep. 24, 2011
Member of board of directors
Convertible debentures
Conversion of accrued interest
|
May 11, 2009
Member of board of directors
Convertible debentures
Conversion of accrued interest
|
Jun. 30, 2013
Member of board of directors
American DG Energy
|
Jun. 30, 2013
Member of board of directors
Ilois
|
Sep. 24, 2011
Member of board of directors
Ilois
Convertible debentures
Common stock
|
May 11, 2009
Member of board of directors
Ilois
Convertible debentures
Common stock
|
Jun. 30, 2013
Chief Executive Officer (John N. Hatsopoulos)
|
Jun. 30, 2013
Chief Executive Officer (John N. Hatsopoulos)
|
Mar. 25, 2013
Chief Executive Officer (John N. Hatsopoulos)
|
Sep. 24, 2001
Chief Executive Officer (John N. Hatsopoulos)
Convertible debentures
|
May 11, 2009
Chief Executive Officer (John N. Hatsopoulos)
Convertible debentures
Common stock
|
May 11, 2009
Chief Executive Officer (John N. Hatsopoulos)
Convertible debentures
Conversion of principal amount
|
May 11, 2009
Chief Executive Officer (John N. Hatsopoulos)
Convertible debentures
Conversion of accrued interest
|
Nov. 30, 2012
Chief Executive Officer (John N. Hatsopoulos)
Demand notes
|
Sep. 07, 2011
Chief Executive Officer (John N. Hatsopoulos)
Demand notes
|
Sep. 10, 2008
Chief Executive Officer (John N. Hatsopoulos)
Demand notes
|
Jun. 30, 2013
Chief Executive Officer (John N. Hatsopoulos)
American DG Energy
|
Jun. 30, 2013
Chairman
GlenRose Instruments
|
Jun. 30, 2013
Investor
Ilois
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Jun. 30, 2013
Investor
GlenRose Instruments
|
Jun. 30, 2013
Investor
Pharos
|
Jun. 30, 2013
Investor
Levitronix
|
Sep. 30, 2009
Joseph J. Ritchie
Convertible debentures
Common stock
|
Sep. 30, 2009
Joseph J. Ritchie
Convertible debentures
Conversion of principal amount
|
Sep. 30, 2009
Joseph J. Ritchie
Convertible debentures
Conversion of accrued interest
|
Sep. 24, 2001
Nia Marie Hatsopoulos
Convertible debentures
|
Sep. 30, 2012
Nia Marie Hatsopoulos
Convertible debentures
Common stock
|
Sep. 24, 2011
Nia Marie Hatsopoulos
Convertible debentures
Common stock
|
Sep. 24, 2001
Alexander J. Hatsopoulos
Convertible debentures
|
Sep. 30, 2012
Alexander J. Hatsopoulos
Convertible debentures
Common stock
|
Sep. 24, 2011
Alexander J. Hatsopoulos
Convertible debentures
Common stock
|
|
| Related Party Transaction [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Number of affiliated companies | 5 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Related party ownership percentage | 13.90% | 6.70% | 10.70% | 15.70% | 3.00% | 15.70% | 24.40% | 21.40% | |||||||||||||||||||||||||||||||||||||||||||||
| Related party transactions agreement term | 5 years | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Related party transactions agreement term, renewal period | 1 year | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Principal amount | $ 330,000 | $ 200,000 | $ 100,000 | $ 300,000 | $ 750,000 | $ 250,000 | $ 50,000 | $ 50,000 | |||||||||||||||||||||||||||||||||||||||||||||
| Related party debt, stated interest rate | 6.00% | 6.00% | 6.00% | 5.00% | |||||||||||||||||||||||||||||||||||||||||||||||||
| Conversion price in usd per share | $ 1.20 | $ 1.20 | $ 2.00 | $ 0.50 | $ 0.50 | $ 1.20 | |||||||||||||||||||||||||||||||||||||||||||||||
| Debt conversion, amount converted | 0 | (480,000) | 109,033 | 72,960 | 90,967 | 427,432 | 72,568 | 30,000 | 14,433 | ||||||||||||||||||||||||||||||||||||||||||||
| Debt conversion, number of shares issued | 6,474 | 400,000 | 1,000,000 | 37,028 | 42,620 | 15,003 | 42,620 | 15,003 | |||||||||||||||||||||||||||||||||||||||||||||
| Officers' compensation | 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Working capital line of credit with related party | 1,500,000 | 1,500,000 | 1,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Percentage of time spent on company affairs | 50.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Sublease rental | 64,721 | 99,468 | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Sublease operating expenses offset | 42,555 | 201,260 | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Headquarters consisting of office and storage space (in square feet) | 27,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Revenue from related parties | 384,415 | 972,911 | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Due to related party | 535,729 | 535,729 | 0 | 531,692 | |||||||||||||||||||||||||||||||||||||||||||||||||
| Due from related party | 70,811 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Prepayments received from related party | 827,747 | 614,789 | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Discount rate on related party prepaid purchases | 6.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Number of shares of subsidiary common stock sold by the Company | 1,400,000.00 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Subsidiary common stock sold by the Company, price in usd per share | $ 0.50 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Extinguishment of debt, principal amount | 109,033 | 427,432 | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Extinguishment of debt, accrued interest | $ 163,535 | ||||||||||||||||||||||||||||||||||||||||||||||||||||