14. Income taxes - Reconciliation of Income Taxes (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Tax benefit at statutory rate	$ 464,746	$ 665,096
Taxation charge	(4,647)
Permanent Differences	(26,674)
Timing difference not provided for	(176,938)
Foreign tax differential	(5,701)
Valuation allowance	$ (250,786)	$ (665,096)
Net future tax asset