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Debtor in Possession Financing (Details Textual) - USD ($) | 12 Months Ended |
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Dec. 31, 2015 | Dec. 31, 2014
Debtor in Possession Financing (Textual) |  |
Debtor in possession financing, amount | $ 600,000 |
Debtor in Possession credit facility, interest rate | 12.00% |
Debtor in possession financing, effective date | 2 years |

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- Definition Debtor in possession financing arrangements effective date. + References No definition available. + Details
Name: | sgbx_DebtorInPossessionFinancingArrangementsEffectiveDate
Namespace Prefix: | sgbx_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition Debtor in possession financing information. + References No definition available. + Details
Name: | sgbx_DebtorInPossessionFinancingTextualAbstract
Namespace Prefix: | sgbx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount debtor-in-possession financing arranged (but not necessarily all borrowed). + References No definition available. + Details
Name: | us-gaap_DebtorInPossessionFinancingAmountArranged
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Interest rate on outstanding borrowings under debtor-in-possession financing arrangement. + References No definition available. + Details
Name: | us-gaap_DebtorInPossessionFinancingInterestRateOnBorrowingsOutstanding
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant