Taxation (Details - Other Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Taxation - Other Details [Line Items]
Unrecognized tax benefits that would create a temporary difference between the reported amount and its tax basis	$ 0	$ 0	$ 0
Amount of change in unrecognized tax benefit within 12 months	2,100,000
Tax loss carryforwards	47,373,000	31,823,000
Valuation allowance	(47,412,000)	(29,201,000)
[IrelandMember]
Taxation - Other Details [Line Items]
Valuation allowance	(13,200,000)
Deferred tax asset carryforwards components
Deferred tax on foreign tax credit carryforwards	14,600,000	9,000,000
[SingaporeMember]
Taxation - Other Details [Line Items]
Valuation allowance	(34,200,000)
[UsaMember]
Deferred tax asset carryforwards components
Deferred tax on foreign tax credit carryforwards	9,700,000
Carryforward period	10
[IrelandAndUsaMember]
Deferred tax asset carryforwards components
Deferred foreign tax credit carryforwards		6,000,000
[CanadaMember]
Taxation - Other Details [Line Items]
Tax loss carryforwards	$ 9,900,000
Deferred tax asset carryforwards components
Carryforward period	20