FAIR VALUE MEASUREMENTS (Details 1) (USD $)	6 Months Ended
	Oct. 31, 2013
Senior Secured Convertible Notes [Member]
Balance at beginning of year	$ 3,088,756
Reduction in derivative instruments from note exercise	(686,856)
Change in fair value of derivative liabilities	1,598,537
Balance at end of period, before Reclassification	4,000,437
Reclassification of derivative liabilities to additional paid-in capital	(4,000,437)
Balance at end of period	0
Senior Secured Convertible Warrants [Member]
Balance at beginning of year	3,858,508
Reduction in derivative instruments from note exercise	0
Change in fair value of derivative liabilities	(764,786)
Balance at end of period, before Reclassification	3,093,722
Reclassification of derivative liabilities to additional paid-in capital	(3,093,722)
Balance at end of period	$ 0