Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area (Details)	3 Months Ended
	Jul. 31, 2015 USD ($)
Segmented Information Schedule Of Revenue From External Customers Attributed To Foreign Countries By Geographic Area 1	$ 1,505,207
Segmented Information Schedule Of Revenue From External Customers Attributed To Foreign Countries By Geographic Area 2	2,322,508
Segmented Information Schedule Of Revenue From External Customers Attributed To Foreign Countries By Geographic Area 3	610,801
Segmented Information Schedule Of Revenue From External Customers Attributed To Foreign Countries By Geographic Area 4	427,687
Segmented Information Schedule Of Revenue From External Customers Attributed To Foreign Countries By Geographic Area 5	149,675
Segmented Information Schedule Of Revenue From External Customers Attributed To Foreign Countries By Geographic Area 6	195,696
Segmented Information Schedule Of Revenue From External Customers Attributed To Foreign Countries By Geographic Area 7	91,563
Segmented Information Schedule Of Revenue From External Customers Attributed To Foreign Countries By Geographic Area 8	81,280
Segmented Information Schedule Of Revenue From External Customers Attributed To Foreign Countries By Geographic Area 9	2,357,246
Segmented Information Schedule Of Revenue From External Customers Attributed To Foreign Countries By Geographic Area 10	$ 3,027,171