CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) (USD $)	Oct. 27, 2012	Jul. 28, 2012
STOCKHOLDERS' EQUITY:
Preferred stock, par value (in dollars per share)	$ 1	$ 1
Preferred stock, authorized (in shares)	1,000,000	1,000,000
Preferred stock, issued (in shares)	0	0
Preferred stock, outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.3333	$ 0.333
Common stock, authorized (in shares)	150,000,000	150,000,000
Common stock, issued (in shares)	32,595,062	33,587,744
Common stock, outstanding (in shares)	32,595,062	33,587,744