EQUITY PLANS (Details 2) (USD $)	12 Months Ended
	Jul. 28, 2012 Y
Weighted-average remaining contractual term of options
Number of Options Outstanding (in share)	440,832
Weighted Average Exercise Price (in dollars per share)	$ 31.24
Weighted Average Remaining Contractual Term (in years)	6.6
Number of Shares Exercisable	211,781
Weighted Average Exercise Price (in dollars per share)	$ 30.12
$12.00 - $24.00
Weighted-average remaining contractual term of options
Exercise price, low end of range (in dollars per share)	$ 12.00
Exercise price, high end of range (in dollars per share)	$ 24.00
Number of Options Outstanding (in share)	8,050
Weighted Average Exercise Price (in dollars per share)	$ 16.56
Weighted Average Remaining Contractual Term (in years)	2.7
Number of Shares Exercisable	7,300
Weighted Average Exercise Price (in dollars per share)	$ 16.59
$24.01 - $32.00
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)	$ 32.00
Number of Options Outstanding (in share)	196,464
Weighted Average Exercise Price (in dollars per share)	$ 25.64
Weighted Average Remaining Contractual Term (in years)	5.6
Number of Shares Exercisable	115,959
Weighted Average Exercise Price (in dollars per share)	$ 26.33
$32.01 - $40.00
Weighted-average remaining contractual term of options
Exercise price, low end of range (in dollars per share)	$ 32.01
Exercise price, high end of range (in dollars per share)	$ 40.00
Number of Options Outstanding (in share)	231,138
Weighted Average Exercise Price (in dollars per share)	$ 36.21
Weighted Average Remaining Contractual Term (in years)	7.6
Number of Shares Exercisable	87,006
Weighted Average Exercise Price (in dollars per share)	$ 36.06
$40.01 - $48.00
Weighted-average remaining contractual term of options
Exercise price, low end of range (in dollars per share)	$ 40.01
Exercise price, high end of range (in dollars per share)	$ 48.00
Number of Options Outstanding (in share)	5,180
Weighted Average Exercise Price (in dollars per share)	$ 44.47
Weighted Average Remaining Contractual Term (in years)	9.2
Number of Shares Exercisable	1,516
Weighted Average Exercise Price (in dollars per share)	$ 44.80