Schedule of Long Lived Assets by Geographical Areas (Details)	6 Months Ended
	Oct. 31, 2016 USD ($)
Segmented Information Schedule Of Long Lived Assets By Geographical Areas 1	$ 6,829,942
Segmented Information Schedule Of Long Lived Assets By Geographical Areas 2	7,279,019
Segmented Information Schedule Of Long Lived Assets By Geographical Areas 3	48,286
Segmented Information Schedule Of Long Lived Assets By Geographical Areas 4	39,583
Segmented Information Schedule Of Long Lived Assets By Geographical Areas 5	6,878,228
Segmented Information Schedule Of Long Lived Assets By Geographical Areas 6	$ 7,318,602