XML 51 R41.htm IDEA: XBRL DOCUMENT v3.8.0.1

Construction Backlog (Details Textual) $ in Millions	3 Months Ended
	Mar. 31, 2018 USD ($) LargeContracts	Sep. 30, 2017 USD ($)	Mar. 31, 2017 USD ($)
Construction Backlog (Textual)
Construction backlog contract amount | $	$ 15	$ 55	$ 27
Number of large contracts | LargeContracts	2

X

- Definition

Its represented contract revenue earned during the period.

+ References

No definition available.

+ Details

Name:	sgbx_ConstructionBacklogContractRevenue
Namespace Prefix:	sgbx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	sgbx_ConstructionBacklogTextualAbstract
Namespace Prefix:	sgbx_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Its represented number of large contracts.

+ References

No definition available.

+ Details

Name:	sgbx_NumberOfLargeContracts
Namespace Prefix:	sgbx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration