Annual report pursuant to Section 13 and 15(d)

SENIOR SECURED CONVERTIBLE NOTES (Parenthetical) (Details)

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SENIOR SECURED CONVERTIBLE NOTES (Parenthetical) (Details) - Senior Secured Convertible Notes [Member]
12 Months Ended
Apr. 30, 2015
Apr. 30, 2014
Debt Instrument [Line Items]    
Debt Instrument Interest Rate Stated Percentage   4.00%
Debt Instrument, Maturity Date Jun. 05, 2014