STOCKHOLDERS' EQUITY (Details) - $ / shares	3 Months Ended	12 Months Ended
	Jul. 31, 2015	Apr. 30, 2015
Class of Stock [Line Items]
Number of Warrants, Outstanding Beginning Balance	15,510
Number Of Warrants, Warrants issued in connection with Series H-1 preferred stock for cash	1,279,759
Number of Warrants, Outstanding Ending Balance	1,295,269	15,510
Weighted Average Exercise Price, Outstanding Beginning Balance	$ 7.25
Weighted Average Exercise Price, Warrants issued in connection with Series H-1 preferred stock for cash	1.66
Weighted Average Exercise Price, Outstanding Ending Balance	$ 1.73	$ 7.25
Weighted Average Remaining Life in years, Contractual Term	4 years 11 months 26 days	3 years 9 months 4 days
Weighted Average Remaining Life In Years, Contractual Term	5 years