Income Taxes (Detail 2) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014
Operating loss carryforwards
Operating loss carryforwards	$ 74,937us-gaap_OperatingLossCarryforwards
Hong Kong and Australia
Operating loss carryforwards
Operating loss carryforwards	$ 74,937

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319

Name:	us-gaap_OperatingLossCarryforwards
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant