CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Jul. 29, 2011	Jul. 30, 2010
Shareholders' Equity:
Preferred stock, shares authorized (in shares)	100,000,000	100,000,000
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares issued (in shares)	0	0
Common stock, shares authorized (in shares)	400,000,000	400,000,000
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares issued (in shares)	22,840,974	22,732,781
Common stock, shares outstanding (in shares)	22,840,974	22,732,781