Income taxes (Details 1) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Deferred tax assets:
Loss carry-forwards	$ 2,900,000	$ 2,700,000
Valuation allowance	2,900,000	2,700,000
Total	0	0
Deferred tax liabilities:
Property and equipment	0	0
Net deferred taxes	$ 0	$ 0