EQUITY PLANS (Details 2) (USD $)	12 Months Ended
	Jul. 30, 2011 year
Weighted-average remaining contractual term of options
Number of Options Outstanding (in share)	664,048
Weighted Average Exercise Price (in dollars per share)	$ 28.40
Weighted Average Remaining Contractual Term (in years)	6.8
Number of Shares Exercisable (in share)	366,665
Weighted Average Exercise Price (in dollars per share)	$ 28.66
$10.00 - $18.00
Weighted-average remaining contractual term of options
Exercise price, low end of range (in dollars per share)	$ 10.00
Exercise price, high end of range (in dollars per share)	$ 18.00
Number of Options Outstanding (in share)	7,250
Weighted Average Exercise Price (in dollars per share)	$ 13.26
Weighted Average Remaining Contractual Term (in years)	3.0
Number of Shares Exercisable (in share)	6,250
Weighted Average Exercise Price (in dollars per share)	$ 13.31
$18.01 - $24.00
Weighted-average remaining contractual term of options
Exercise price, low end of range (in dollars per share)	$ 18.01
Exercise price, high end of range (in dollars per share)	$ 24.00
Number of Options Outstanding (in share)	29,750
Weighted Average Exercise Price (in dollars per share)	$ 18.87
Weighted Average Remaining Contractual Term (in years)	2.4
Number of Shares Exercisable (in share)	29,250
Weighted Average Exercise Price (in dollars per share)	$ 18.79
$24.01 - $30.00
Weighted-average remaining contractual term of options
Exercise price, low end of range (in dollars per share)	$ 24.01
Exercise price, high end of range (in dollars per share)	$ 30.00
Number of Options Outstanding (in share)	401,416
Weighted Average Exercise Price (in dollars per share)	$ 25.48
Weighted Average Remaining Contractual Term (in years)	6.9
Number of Shares Exercisable (in share)	207,873
Weighted Average Exercise Price (in dollars per share)	$ 26.03
$30.01 - $43.00
Weighted-average remaining contractual term of options
Exercise price, low end of range (in dollars per share)	$ 30.01
Exercise price, high end of range (in dollars per share)	$ 43.00
Number of Options Outstanding (in share)	225,632
Weighted Average Exercise Price (in dollars per share)	$ 35.33
Weighted Average Remaining Contractual Term (in years)	7.2
Number of Shares Exercisable (in share)	123,292
Weighted Average Exercise Price (in dollars per share)	$ 36.21