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Subsequent Events	6 Months Ended
Subsequent Events	Jan. 31, 2015
Subsequent Events [Abstract]
Subsequent Events	NOTE L — Subsequent Events On February 18, 2015, the Board of Directors declared a quarterly cash dividend to shareholders of the Company’s Class A and Class B Common Stock of $0.20 per share payable on April 30, 2015, to shareholders of record at the close of business on April 10, 2015.