2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICY (Tables)

6 Months Ended

Oct. 31, 2017

ESPP [Member]

Schedule of antidilutive shares

	Three Months Ended October 31,				Six Months Ended October 31,
	2017		2016		2017		2016
Stock Options		31,877		–		69,065		–
ESPP		–		23,668		133		17,139
Total		31,877		23,668		69,198		17,139

Stock Options, Warrants, and Series E Preferred Stock (assuming the if-converted method) [Member]

Schedule of antidilutive shares

	Three Months Ended October 31,				Six Months Ended October 31,
	2017		2016		2017		2016
Stock Options		3,600,478		4,258,060		3,608,917		4,119,209
ESPP		43,332		–		–		–
Warrants		39,040		39,040		39,040		39,040
Series E Preferred Stock		1,978,783		1,971,206		1,978,783		1,932,771
Total		5,661,633		6,268,306		5,626,740		6,091,020