Schedule of Long Lived Assets by Geographical Areas (Details)	3 Months Ended
	Jul. 31, 2015 USD ($)
Segmented Information Schedule Of Long Lived Assets By Geographical Areas 1	$ 7,108,705
Segmented Information Schedule Of Long Lived Assets By Geographical Areas 2	7,714,307
Segmented Information Schedule Of Long Lived Assets By Geographical Areas 3	72,226
Segmented Information Schedule Of Long Lived Assets By Geographical Areas 4	85,003
Segmented Information Schedule Of Long Lived Assets By Geographical Areas 5	7,180,931
Segmented Information Schedule Of Long Lived Assets By Geographical Areas 6	$ 7,799,310