Licensing Agreements (Details Textual)	12 Months Ended
	Apr. 30, 2013 CAD	Jul. 31, 2013 CAD	Apr. 30, 2013 USD ($)	Apr. 30, 2012 CAD
Additional License Costs				45,000
Business Acquisition, Contingent Consideration, Potential Cash Payment			3,000,000
Royalty Expense	10,000
Accrued Annual Royalty Payment	10,000	10,000