Commitments and contingencies (Details) - USD ($)	Mar. 01, 2016	Jun. 30, 2014	Apr. 11, 2014	Mar. 31, 2014
Commitments and contingencies details
Mentor filed suit against Bhang and its owners in the United States District Court for the Northern District of California for co-operative funding agreement with Bhang, seeking return of the investment			$ 1,500,000
Company paid for credit default insurance to a third party as required by the lender on an international loan facility.				$ 621,250
Amount represented percent of prospective loan amount				1.75%
The amount was expensed as loan costs in the consolidated statement of operations for the year		$ 621,250
Mentor was granted a judgement in the amount	$ 746,500.29