DISCONTINUED OPERATIONS (Details Textual) (Product Line [Member], USD $)	0 Months Ended	12 Months Ended
	Apr. 28, 2012 employee	Jul. 31, 2014	Jul. 31, 2013
Product Line [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Expected proceeds from divestiture of component	$ 550,000,000
Number of employees to be transferred	1,400
Proceeds From divestiture of component	535,000,000
Gain (loss) on the sale of product line		395,893,000
External costs included in earnings from discontinued operations before income taxes			$ 9,150,000