(Details Textual)	Aug. 31, 2012 Economic Modeling [Member]	Mar. 31, 2013 Vietnam Online Network [Member]
Supplemental equity information (Textual) [Abstract]
Percentage of acquired company	74.00%	87.50%
Shareholders for remaining of ownership percentage	26.00%	11.50%

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

No definition available.

Name:	us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant