v2.4.1.9

Statutory reserve (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statutory Reserves [Abstract]
Appropriations to statutory reserves		$ 408sgoc_AppropriationsToStatutoryReserves	$ 347sgoc_AppropriationsToStatutoryReserves

X

- Definition

Appropriations to statutory reserves.

+ References

No definition available.

+ Details

Name:	sgoc_AppropriationsToStatutoryReserves
Namespace Prefix:	sgoc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	sgoc_StatutoryReservesAbstract
Namespace Prefix:	sgoc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration