American DG Energy (ADGE) 10-Q 15 May 15 2015 Q1 Quarterly report Financial data

DOCUMENT_AND_ENTITY_INFORMATIO

DOCUMENT AND ENTITY INFORMATION	3 Months Ended
	Mar. 31, 2015	14-May-15
Document and Entity Information [Abstract]
Entity Registrant Name	AMERICAN DG ENERGY INC
Entity Central Index Key	1378706
Current Fiscal Year End Date	-19
Entity Filer Category	Smaller Reporting Company
Trading Symbol	adge
Entity Common Stock, Shares Outstanding		50,627,176
Document Type	10-Q
Amendment Flag	FALSE
Document Period End Date	31-Mar-15
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2015

CONDENSED_CONSOLIDATED_BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)	Mar. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$8,674,944	$11,825,915
Accounts receivable, net	1,176,207	1,140,811
Unbilled revenue	26,257	12,533
Due from related party	48,966	39,682
Inventory finished goods	1,054,877	1,153,927
Prepaid and other current assets	1,156,074	852,069
Total current assets	12,137,325	15,024,937
Property, plant and equipment, net	25,460,391	24,885,155
Accounts receivable, long-term	0	3,600
Other assets, long-term	82,329	92,148
TOTAL ASSETS	37,680,045	40,005,840
Current liabilities:
Accounts payable	932,528	605,530
Accrued expenses and other current liabilities	313,559	485,570
Due to related party	308,386	630,805
Note payable related party	2,000,000	0
Total current liabilities	3,554,473	1,721,905
Long-term liabilities:
Convertible debentures	1,630,399	1,645,444
Convertible debentures due related parties	16,146,981	15,864,215
Note payable related party	0	3,000,000
Warrant liability	382	6,780
Other long-term liabilities	0	2,227
Total liabilities	21,332,235	22,240,571
Commitments and contingencies
Stockholders' Equity:
Common stock, $0.001 par value; 100,000,000 shares authorized; 50,667,564 and 52,140,001 issued and outstanding at March 31, 2015 and December 31, 2014, respectively.	50,667	52,140
Additional paid-in capital	49,889,814	49,854,998
Accumulated deficit	-36,444,845	-35,232,411
Total American DG Energy Inc. stockholders’ equity	13,495,636	14,674,727
Noncontrolling interest	2,852,174	3,090,542
Total stockholders' equity	16,347,810	17,765,269
TOTAL LIABILITIES AND STOCKHOLDERS EQUITY	$37,680,045	$40,005,840

CONDENSED_CONSOLIDATED_BALANCE1

CONDENSED CONSOLIDATED BALANCE SHEETS [Parenthetical] (USD $)	Mar. 31, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$0.00	$0.00
Common stock, shares authorized	100,000,000	100,000,000
Common stock,shares issued	50,667,564	52,140,001
Common stock, shares outstanding	50,667,564	52,140,001

CONDENSED_CONSOLIDATED_STATEME

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Revenues
Energy revenues	$2,390,347	$2,396,281
Turnkey & other revenues	117,393	131,519
Sales Revenue, Net, Total	2,507,740	2,527,800
Cost of sales
Fuel, maintenance and installation	1,727,653	1,707,646
Depreciation expense	508,457	481,564
Cost of Goods and Services Sold, Total	2,236,110	2,189,210
Gross profit	271,630	338,590
Operating expenses
General and administrative	861,062	773,960
Selling	340,693	261,116
Engineering	170,370	263,771
Operating Expenses, Total	1,372,125	1,298,847
Loss from operations	-1,100,495	-960,257
Other income (expense), net
Interest and other income	18,266	14,984
Interest expense	-312,456	-354,503
Loss on extinguishment of debt	0	-533,177
Change in fair value of warrant liability	6,398	-66,113
Other income (expense), total	-287,792	-938,809
Loss before provision for income taxes	-1,388,287	-1,899,066
Provision for income taxes	-7,355	-6,940
Consolidated net loss	-1,395,642	-1,906,006
Loss attributable to the noncontrolling interest	183,208	240,650
Net loss attributable to American DG Energy Inc.	($1,212,434)	($1,665,356)
Net loss per share - basic and diluted (in dollars per share)	($0.02)	($0.03)
Weighted average shares outstanding - basic and diluted (in shares)	50,735,381	49,817,920

CONDENSED_CONSOLIDATED_STATEME1

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	($1,212,434)	($1,665,356)
Loss attributable to noncontrolling interest	-183,208	-240,650
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation and amortization	519,501	511,981
Loss on extinguishment of debt	0	533,177
Amortization of deferred financing costs	1,726	4,830
Amortization of convertible debt premium	-24,072	20,948
Increase (decrease) in fair value of warrant liability	-6,398	66,113
Non-cash interest expense	299,910	0
Stock-based compensation	150,459	138,628
Changes in operating assets and liabilities:
Accounts receivable and unbilled revenue	-45,520	-428,760
Due from related party	-9,287	173,677
Inventory	99,050	308,356
Prepaid and other current assets	-295,912	-193,304
Increase (decrease) in:
Accounts payable	326,998	355,018
Accrued expenses and other current liabilities	-180,128	283,931
Due to related party	-322,419	253,584
Other long-term liabilities	-2,227	-3,402
Net cash (used in) provided by operating activities	-883,961	118,771
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	-1,094,737	-1,817,875
Net cash used in investing activities	-1,094,737	-1,817,875
CASH FLOWS FROM FINANCING ACTIVITIES:
Purchases of common stock, net of costs	-100,545	0
Payment on related party note	-1,000,000	0
Distributions to noncontrolling interest	-71,728	-13,408
Net cash used in financing activities	-1,172,273	-13,408
Net decrease in cash and cash equivalents	-3,150,971	-1,712,512
Cash and cash equivalents, beginning of the period	11,825,915	9,804,291
Cash and cash equivalents, end of the period	8,674,944	8,091,779
Supplemental disclosures of cash flows information:
Interest	0	0
Income taxes	$20,430	$14,830

Description_of_Business_and_Ba

Description of Business and Basis of Presentation	3 Months Ended
	Mar. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies	Description of Business and Basis of Presentation
	Description of Business
	American DG Energy Inc., or the Company, we, our or us, distributes, owns, operates and maintains clean, on-site energy systems that produce electricity, hot water, heat and cooling. The Company's business model is to own the equipment that it installs at customers' facilities and to sell the energy produced by these systems to its customers on a long-term contractual basis at prices guaranteed to the customer to be below conventional utility rates. The Company calls this business the American DG Energy “On-Site Utility”.
	The Company has experienced total net losses since inception of approximately $36 million. For the foreseeable future, the Company expects to experience continuing operating losses and negative cash flows from operations as its management executes the current business plan. The Company believes that its existing resources, including cash and cash equivalents and future cash flow from operations, are sufficient to meet the working capital requirements of its existing business for the foreseeable future. However, as the Company continues to grow its business by adding more energy systems, cash requirements will increase and the Company may need to raise additional capital through debt financings or equity offerings to meet its operating and capital needs. There can be no assurance, however, that the Company will be successful in its fundraising efforts or that additional funds will be available on acceptable terms, if at all. If the Company is unable to raise additional funds in the future it may need to terminate certain of its employees and adjust its business plans. Financial considerations may cause the Company to modify planned deployment of new energy systems and may decide to suspend installations until it is able to secure additional working capital. The Company will evaluate possible acquisitions of, or investments in, businesses, technologies and products that are complementary to its business; however, the Company is not currently engaged in such discussions.
	Basis of Presentation
	The accompanying unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Article 8 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three months ended March 31, 2015 are not necessarily indicative of the results that may be expected for the year ended December 31, 2015.
	The consolidated balance sheet at December 31, 2014 has been derived from the audited consolidated financial statements at that date but does not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements.
	For further information, refer to the consolidated financial statements and footnotes thereto included in American DG Energy Inc.’s annual report on Form 10-K for the year ended December 31, 2014.
	There have been no significant changes in accounting principles, practices or inherent estimates.
	The accompanying unaudited consolidated financial statements include the accounts of the Company and entities in which it has a controlling financial interest including its 48.0% owned subsidiary EuroSite Power Inc. (EuroSite Power) which the Company has determined to be a Variable Interest Entity (VIE) and for which the Company has determined it is the primary beneficiary.
	The Company’s operations are comprised of one business segment. The Company’s business is selling energy in the form of electricity, heat, hot water and cooling to its customers under long-term sales agreements.

Loss_per_Common_Share

Loss per Common Share	3 Months Ended
	Mar. 31, 2015
Earnings Per Share [Abstract]
Loss Per Common Share	Loss Per Common Share
	The Company computes basic loss per share by dividing net income (loss) for the period by the weighted average number of shares of common stock outstanding during the period. The Company computes diluted earnings per common share using the treasury stock method. For purposes of calculating diluted earnings per share, the Company considers its shares issuable in connection with convertible debentures, stock options and warrants to be dilutive common stock equivalents when the exercise price is less than the average market price of its common stock for the period. For the three month period ended March 31, 2015, the Company excluded 15,763,083 potentially dilutive shares, and for the three month period ended March 31, 2014, the Company excluded 12,088,313 potentially dilutive shares because such shares would be anti-dilutive as a result of the reported net loss.

Income_Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2015
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes
	The provision for income taxes in the accompanying unaudited consolidated statements of operations for the three months ended March 31, 2015 and 2014 differ from that which would be expected by applying the federal statutory tax rate primarily due to losses for which no benefit is recognized.

Warrant_liability

Warrant liability	3 Months Ended
	Mar. 31, 2015
Warrants and Rights Note Disclosure [Abstract]
Warrant Liability	Warrant Liability
	In connection with a subscription agreement that the Company entered into on December 9, 2010 the Company issued warrants for the purchase of 500,000 shares of its common stock. The warrants have an exercise price of $3.25 and are exercisable for five years, commencing six months after the closing of the offering and expire on December 14, 2015.
	The warrants contain both a right to obtain stock upon exercise, or a Call, and a right to settle the warrants for cash upon the occurrence of certain events, or a Put. Generally, the Put provisions allow the warrant holders liquidity protection; the right to receive cash equal to the value of the remaining unexercised portion of the warrants in certain situations where the holders would not have a means of readily selling the shares issuable upon exercise of the warrants (e.g., where there would no longer be a significant public market for the Company’s common stock). Specifically, the Put rights would be triggered upon the occurrence of a Fundamental Transaction as defined in the agreement. Pursuant to the agreement, in the case of a Fundamental Transaction the warrant holders would receive a cash settlement in an amount equal to the value of obtained by using the Black Scholes Option Pricing Model obtained from the “OV” function on Bloomberg L.P. using (i) a price per share of Common Stock equal to the Volume-Weighted Average Price of the Common Stock for the Trading Day immediately preceding the date of consummation of the applicable Fundamental Transaction, (ii) a risk-free interest rate corresponding to the U.S. Treasury rate for a period equal to the remaining term of this Warrant as of the date of consummation of the applicable Fundamental Transaction and (iii) an expected volatility equal to the lesser of (1) the thirty (30) day volatility obtained from the “HVT” function on Bloomberg L.P. determined as of the end of the Trading Day immediately following the public announcement of the applicable Fundamental Transaction or (2) 70%. These warrants are classified as liabilities pursuant to the FASB guidance contained in ASC 480. Changes in the fair value of the warrant liabilities are recorded in the accompanying consolidated statements of operations (see note 5. "Fair Value Measurements”).
	Stockholders’ Equity
	On January 29, 2015, the Company entered into an exchange agreement, or the Exchange Agreement, with IN Holdings Corp., a holder of more than 5% percent of the Company’s common stock, or IN Holdings. In connection with the Exchange Agreement, IN Holdings transferred to the Company 1,320,000 shares of the Company’s common stock that it owned, and in exchange, the Company transferred to IN Holdings 1,320,000 shares of the common stock of EuroSite Power Inc. that it owned. The exchange was accounted for as an acquisition and retirement of treasury shares and a disposal of partial ownership of a consolidated subsidiary. As the company retained a controlling financial interest following the exchange, no gain or loss was recognized on the disposal in accordance with ASC 810-10-45-23. In accordance with ASC 845-10-05-4, nonmonetary transactions, the fair value of the shares surrendered by the Company in the exchange were used to value the exchange.

Fair_value_Measurements

Fair value Measurements	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Fair value Measurements	Fair Value Measurements
	The fair value topic of the FASB Accounting Standards Codification defines fair value as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. The accounting guidance also establishes a fair value hierarchy which requires an entity to maximize the use of observable inputs, where available, and minimize the use of unobservable inputs when measuring fair value. There are three levels of inputs that may be used to measure fair value:
	Level 1 - Unadjusted quoted prices in active markets for identical assets or liabilities. The Company currently does not have any Level 1 financial assets or liabilities.
	Level 2 - Observable inputs other than quoted prices included in Level 1. Level 2 inputs include quoted prices for identical assets or liabilities in non-active markets, quoted prices for similar assets or liabilities in active markets and inputs other than quoted prices that are observable for substantially the full term of the asset or liability. The Company considers its convertible debentures a level 2 liability and believes that its carrying value approximates fair value.
	Level 3 - Unobservable inputs reflecting management’s own assumptions about the input used in pricing the asset or liability.
	As of March 31, 2015, the Company has classified the warrants with put and call rights as Level 3 (see Note 4. "Warrant Liability”). The Company estimated the fair value of the warrants using a Black-Scholes option pricing model under various probability-weighted outcomes which take into consideration the protective, but limited, cash-settlement feature of the warrants. At issuance, the following average assumptions were assigned to the varying outcomes: expected volatility of 57.0%, risk free interest rate of 2.08%, expected life of five years and no dividends. The Company estimated the fair value of the warrants at March 31, 2015 using this same model with the following average assumptions assigned to the varying outcomes: expected volatility of 82.7%, risk free interest rates of 1.52%, expected lives of 0.71 and no dividends. As
	of March 31, 2015, the financial liabilities held by the Company and measured at fair value on a recurring basis (which consist solely of the warrant liability) were $382. The following table summarizes the warrant liability activity for the period:
		Warrant Liability
	Fair value at December 31, 2014	$	6,780
	Fair value adjustment year-to-date	(6,398		)
	Fair value at March 31, 2015	$	382

Stockholders_Equity

Stockholders' Equity	3 Months Ended
	Mar. 31, 2015
Equity [Abstract]
Stockholders' Equity	Warrant Liability
	In connection with a subscription agreement that the Company entered into on December 9, 2010 the Company issued warrants for the purchase of 500,000 shares of its common stock. The warrants have an exercise price of $3.25 and are exercisable for five years, commencing six months after the closing of the offering and expire on December 14, 2015.
	The warrants contain both a right to obtain stock upon exercise, or a Call, and a right to settle the warrants for cash upon the occurrence of certain events, or a Put. Generally, the Put provisions allow the warrant holders liquidity protection; the right to receive cash equal to the value of the remaining unexercised portion of the warrants in certain situations where the holders would not have a means of readily selling the shares issuable upon exercise of the warrants (e.g., where there would no longer be a significant public market for the Company’s common stock). Specifically, the Put rights would be triggered upon the occurrence of a Fundamental Transaction as defined in the agreement. Pursuant to the agreement, in the case of a Fundamental Transaction the warrant holders would receive a cash settlement in an amount equal to the value of obtained by using the Black Scholes Option Pricing Model obtained from the “OV” function on Bloomberg L.P. using (i) a price per share of Common Stock equal to the Volume-Weighted Average Price of the Common Stock for the Trading Day immediately preceding the date of consummation of the applicable Fundamental Transaction, (ii) a risk-free interest rate corresponding to the U.S. Treasury rate for a period equal to the remaining term of this Warrant as of the date of consummation of the applicable Fundamental Transaction and (iii) an expected volatility equal to the lesser of (1) the thirty (30) day volatility obtained from the “HVT” function on Bloomberg L.P. determined as of the end of the Trading Day immediately following the public announcement of the applicable Fundamental Transaction or (2) 70%. These warrants are classified as liabilities pursuant to the FASB guidance contained in ASC 480. Changes in the fair value of the warrant liabilities are recorded in the accompanying consolidated statements of operations (see note 5. "Fair Value Measurements”).
	Stockholders’ Equity
	On January 29, 2015, the Company entered into an exchange agreement, or the Exchange Agreement, with IN Holdings Corp., a holder of more than 5% percent of the Company’s common stock, or IN Holdings. In connection with the Exchange Agreement, IN Holdings transferred to the Company 1,320,000 shares of the Company’s common stock that it owned, and in exchange, the Company transferred to IN Holdings 1,320,000 shares of the common stock of EuroSite Power Inc. that it owned. The exchange was accounted for as an acquisition and retirement of treasury shares and a disposal of partial ownership of a consolidated subsidiary. As the company retained a controlling financial interest following the exchange, no gain or loss was recognized on the disposal in accordance with ASC 810-10-45-23. In accordance with ASC 845-10-05-4, nonmonetary transactions, the fair value of the shares surrendered by the Company in the exchange were used to value the exchange.

Related_parties

Related parties	3 Months Ended
	Mar. 31, 2015
Related Party Transactions [Abstract]
Related Parties	Related Parties
	Eurosite Power, Tecogen, Ilios Inc., or Ilios are affiliated companies by virtue of common ownership.
	The Company purchases the majority of its cogeneration units from Tecogen, an affiliate Company sharing similar ownership. In addition, Tecogen pays certain operating expenses, including benefits and payroll, on behalf of the Company and the Company leases office space from Tecogen. These costs were reimbursed by the Company. As of March 31, 2015, the Company owed Tecogen $308,386 and Tecogen owed the Company $33,109.
	During the first quarter of 2015, Eurosite Power, repaid $1,000,000 of a related party $3,000,000 note in accordance to the original terms of the agreement.

Commitments_and_Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies
	The Company has certain commitments under agreements with Tecogen, Ilios, and other related parties. See note 7. "Related Parties"
	The Company, in the ordinary course of business is involved in various legal matters, the outcomes of which are not expected to have a material impact on the Company's condensed consolidated financial statements.

Subsequent_Events

Subsequent Events	3 Months Ended
	Mar. 31, 2015
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events
	The Company has evaluated subsequent events through the date of this filing and determined that no other subsequent events occurred that would require recognition in the consolidated financial statements or disclosure in the notes thereto.

Variable_Interest_Entity_Notes

Variable Interest Entity (Notes)	3 Months Ended
	Mar. 31, 2015
Variable Interest Entity Disclosure [Abstract]
Variable Interest Entity Disclosure [Text Block]	Variable Interest Entity
	The carrying amount and classification of assets and liabilities of the Company's consolidated subsidiary EuroSite Power, which is considered to be a variable interest entity, and for which the Company has determined it is the primary beneficiary, were as follows as March 31, 2015 and December 31, 2014:
		March 31, 2015	December 31, 2014
	Current assets	$2,988,684	$4,784,215
	Long-term assets	6,820,413	6,365,669
	Current liabilities	2,511,560	3,401,116
	Long-term liabilities	2,608,638	2,632,710

Description_of_Business_and_Ba1

Description of Business and Basis of Presentation (Policies)	3 Months Ended
	Mar. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business	American DG Energy Inc., or the Company, we, our or us, distributes, owns, operates and maintains clean, on-site energy systems that produce electricity, hot water, heat and cooling. The Company's business model is to own the equipment that it installs at customers' facilities and to sell the energy produced by these systems to its customers on a long-term contractual basis at prices guaranteed to the customer to be below conventional utility rates. The Company calls this business the American DG Energy “On-Site Utility”.
	The Company has experienced total net losses since inception of approximately $36 million. For the foreseeable future, the Company expects to experience continuing operating losses and negative cash flows from operations as its management executes the current business plan. The Company believes that its existing resources, including cash and cash equivalents and future cash flow from operations, are sufficient to meet the working capital requirements of its existing business for the foreseeable future. However, as the Company continues to grow its business by adding more energy systems, cash requirements will increase and the Company may need to raise additional capital through debt financings or equity offerings to meet its operating and capital needs. There can be no assurance, however, that the Company will be successful in its fundraising efforts or that additional funds will be available on acceptable terms, if at all. If the Company is unable to raise additional funds in the future it may need to terminate certain of its employees and adjust its business plans. Financial considerations may cause the Company to modify planned deployment of new energy systems and may decide to suspend installations until it is able to secure additional working capital. The Company will evaluate possible acquisitions of, or investments in, businesses, technologies and products that are complementary to its business; however, the Company is not currently engaged in such discussions.
Basis of Presentation	The accompanying unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Article 8 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three months ended March 31, 2015 are not necessarily indicative of the results that may be expected for the year ended December 31, 2015.
	The consolidated balance sheet at December 31, 2014 has been derived from the audited consolidated financial statements at that date but does not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements.
	For further information, refer to the consolidated financial statements and footnotes thereto included in American DG Energy Inc.’s annual report on Form 10-K for the year ended December 31, 2014.
	There have been no significant changes in accounting principles, practices or inherent estimates.
	The accompanying unaudited consolidated financial statements include the accounts of the Company and entities in which it has a controlling financial interest including its 48.0% owned subsidiary EuroSite Power Inc. (EuroSite Power) which the Company has determined to be a Variable Interest Entity (VIE) and for which the Company has determined it is the primary beneficiary.
	The Company’s operations are comprised of one business segment. The Company’s business is selling energy in the form of electricity, heat, hot water and cooling to its customers under long-term sales agreements.

Fair_value_Measurements_Tables

Fair value Measurements (Tables)	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Schedule Of Warrant Liabilities	The following table summarizes the warrant liability activity for the period:
		Warrant Liability
	Fair value at December 31, 2014	$	6,780
	Fair value adjustment year-to-date	(6,398		)
	Fair value at March 31, 2015	$	382

Variable_Interest_Entity_Table

Variable Interest Entity (Tables)	3 Months Ended
	Mar. 31, 2015
Variable Interest Entity Disclosure [Abstract]
Schedule of Variable Interest Entities	The carrying amount and classification of assets and liabilities of the Company's consolidated subsidiary EuroSite Power, which is considered to be a variable interest entity, and for which the Company has determined it is the primary beneficiary, were as follows as March 31, 2015 and December 31, 2014:
		March 31, 2015	December 31, 2014
	Current assets	$2,988,684	$4,784,215
	Long-term assets	6,820,413	6,365,669
	Current liabilities	2,511,560	3,401,116
	Long-term liabilities	2,608,638	2,632,710

Description_of_Business_and_Ba2

Description of Business and Basis of Presentation (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
	segment
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Retained Earnings (Accumulated Deficit)	($36,444,845)	($35,232,411)
Number of Operating Segments	1
EuroSite Power Inc.
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Percentage Of Owned Subsidiary	48.00%

Loss_per_Common_Share_Details

Loss per Common Share (Details)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Earnings Per Share [Abstract]
Potentially dilutive securities excluded from computation of earnings per share	15,763,083	12,088,313

Warrant_liability_Details

Warrant liability (Details) (Warrants and Rights Subject to Mandatory Redemption, USD $)	0 Months Ended
	Dec. 09, 2010	Dec. 09, 2010
Warrants and Rights Subject to Mandatory Redemption
Class of Warrant or Right [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights	500,000	500,000
Class of Warrant or Right, Exercise Price of Warrants or Rights	$3.25	$3.25
Class of Warrant or Right, Term	5 years
Class Of Warrant Or Right, Volatility Measurement Period For Potential Settlement	30 days
Class Of Warrant Or Right, Settlement, Value, Percent	70.00%

Fair_value_Measurements_Textua

Fair value Measurements (Textual) (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, noncurrent	382	$6,780
Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Expected volatility rate	57.00%
Risk free interest rate	2.08%
Expected term	5 years
Fair Value, Inputs, Level 3 | Warrant
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Expected volatility rate	82.70%
Risk free interest rate	1.52%
Expected term	8 months 16 days

Fair_value_Measurements_Detail

Fair value Measurements (Details) (USD $)	3 Months Ended
	Mar. 31, 2015
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Fair value at December 31, 2014	$6,780
Fair value adjustment year-to-date	-6,398
Fair value at March 31, 2015	$382

Stockholders_Equity_Details

Stockholders' Equity (Details) (USD $)	0 Months Ended	3 Months Ended	0 Months Ended
	Sep. 19, 2014	Mar. 31, 2015	Jan. 29, 2015
Related Party Transaction [Line Items]
Ownership percentage by IN Holdings, Inc.			5.00%
Stock repurchase program, number of shares authorized to be repurchased	1,000,000
Stock repurchase program, amount authorized	$1,100,000
Stock repurchase program, period in force	24 months
Stock repurchase program, maximum authorized purchase price per share	$1.30
Stock repurchase program, stock repurchased during period, shares		152,437
Stock repurchase program, stock repurchased during period, average price per share		$0.51
Equity Exchange Agreement | IN Holdings, Inc.
Related Party Transaction [Line Items]
Treasury stock acquired and subsequently retired			1,320,000
Stock transferred in disposal of partial ownership in consolidated subsidiary			1,320,000

Related_parties_Details

Related parties (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Related Party Transaction [Line Items]
Payment on related party note	$1,000,000	$0
Note payable related party	0		3,000,000
Affiliated Entity | Tecogen
Related Party Transaction [Line Items]
Due to related parties	308,386
Due from related parties	33,109
Affiliated Entity | EuroSite Power Inc.
Related Party Transaction [Line Items]
Payment on related party note	1,000,000
Board of Directors Chairman
Related Party Transaction [Line Items]
Note payable related party			$3,000,000

Variable_Interest_Entity_Detai

Variable Interest Entity (Details) (Variable Interest Entity, Primary Beneficiary, USD $)	Mar. 31, 2015	Dec. 31, 2014
Current Assets
Variable Interest Entity [Line Items]
Variable interest entity, assets	$2,988,684	$4,784,215
Noncurrent Assets
Variable Interest Entity [Line Items]
Variable interest entity, assets	6,820,413	6,365,669
Current Liabilities
Variable Interest Entity [Line Items]
Variable interest entity, liabilities	2,511,560	3,401,116
Noncurrent Liabilities
Variable Interest Entity [Line Items]
Variable interest entity, liabilities	$2,608,638	$2,632,710