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STOCKHOLDERS' EQUITY (Details) - shares
Jul. 31, 2016
Apr. 30, 2016
Jul. 31, 2015
Increase (Decrease) in Stockholders' Equity      
Balance beginning of year (in shares) 5,615,750 5,615,750 5,615,750
Balance end of year (in shares) 5,615,750 5,615,750 5,615,750