Schedule of Long Lived Assets by Geographical Areas (Details) (USD $)	6 Months Ended
	Oct. 31, 2013
Segmented Information Schedule Of Long Lived Assets By Geographical Areas 1	$ 8,547,832
Segmented Information Schedule Of Long Lived Assets By Geographical Areas 2	8,796,202
Segmented Information Schedule Of Long Lived Assets By Geographical Areas 3	69,125
Segmented Information Schedule Of Long Lived Assets By Geographical Areas 4	114,879
Segmented Information Schedule Of Long Lived Assets By Geographical Areas 5	8,616,957
Segmented Information Schedule Of Long Lived Assets By Geographical Areas 6	$ 8,911,081