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Condensed Consolidated Statements of Changes in Stockholders' Equity Deficiency (Unaudited) (Parenthetical) (USD $)	9 Months Ended
	Sep. 30, 2012
Statement Of Changes In Stockholders' Deficiency [Abstract]
Warrant liabilities related to stock issued in private offering	$ 19,130
Closing costs related to stock issued in private offering	$ 36,072

X

- Definition

Closing stock costs related to stock issued in private offering.

+ References

No definition available.

+ Details

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Balance Type:	debit
Period Type:	duration

X

- Definition

Warrant liabilities amount related to stock issued in private offering.

+ References

No definition available.

+ Details

Name:	sgbx_WarrantLiabilitiesAmountRelatedToStockIssuedInPrivateOffering
Namespace Prefix:	sgbx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration