Licensing Agreements (Details Textual)	12 Months Ended
	Apr. 30, 2013 USD ($)	Apr. 30, 2013 CAD	Apr. 30, 2012 CAD
License Costs			45,000
Royalty Expense		10,000
Payments to Acquire Productive Assets, Total	3,000,000
Accrued Annual Royalty Payment		10,000