2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICY (Tables)

9 Months Ended

Jan. 31, 2016

Summary Of Significant Accounting Policy Tables

Schedule of antidilutive shares

	Three Months Ended January 31,				Nine Months Ended January 31,
	2016		2015		2016		2015
Stock Options		2,012,239		3,209,716		2,189,915		4,067,214
ESPP		16,932		4,159		61,817		28,376
Total		2,029,171		3,213,875		2,251,732		4,095,590

	Three Months Ended January 31,				Nine Months Ended January 31,
	2016		2015		2016		2015
Stock Options		19,129,031		8,569,057		15,800,281		8,500,817
Warrants		273,280		273,280		273,280		273,280
Series E Preferred Stock		13,260,355		9,912,502		13,249,024		9,321,584
Total		32,662,666		18,754,839		29,322,585		18,095,681