Convertible note receivable (Details) - USD ($)	Jun. 30, 2016	Mar. 12, 2014
Convertible notes receivable Details
Company advanced to Electrum as a convertible note receivable		$ 100,000
Note bears interest rate per annum	5.00%
Increase in interest rate	10.00%
Payments of principal and interest in the amount from from March 12, 2017 through March 12, 2022	$ 2,290