Significant Accounting Policies - Schedule of Common Stock Equivalents (Details) - shares	12 Months Ended
	Apr. 30, 2016	Apr. 30, 2015
Common stock equivalent shares	876,383	877,400
Stock Purchase Warrants [Member]
Common stock equivalent shares		336,459
Stock Options [Member]
Common stock equivalent shares	743,050	540,941
Stock Purchase Warrants [Member]
Common stock equivalent shares	133,333