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Commitments and contingencies - Agreement with Digital Energy Corp. (Details) (USD $)
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Sep. 30, 2014
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Revolving Credit Facility [Member]
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| Guarantor Obligations [Line Items] | |
| Letter of credit outstanding | $ 583,073 |
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Chief Executive Officer (John N. Hatsopoulos) | Letter of Credit [Member]
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| Guarantor Obligations [Line Items] | |
| Collateralized Financings | $ 1,055,000 |
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- Definition
The value of the collateral (typically cash) that the entity receives in a financing transaction in exchange for securities lent. This item represents a liability in the financial statements of the lender of the securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. No definition available.
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