Consolidated Statements of Changes in Stockholders' Equity (Deficiency) (Parenthetical) (USD $)	12 Months Ended
Dec. 31, 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

Warrant liabilities amount related to stock issued in private offering.

No definition available.

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