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STOCKHOLDERS' EQUITY (SCHEDULE OF STOCK BY CLASS) (Details) - shares
Oct. 31, 2015
Apr. 30, 2015
Oct. 31, 2014
Increase (Decrease) in Stockholders' Equity [Roll Forward]      
Balance at the begining 5,615,750 5,615,750 5,615,750
Balance at the end 5,615,750 5,615,750 5,615,750