CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Apr. 28, 2012	Apr. 30, 2011	Apr. 28, 2012	Apr. 30, 2011
Sales	$ 347,009	$ 316,594	$ 1,052,384	$ 953,908
Cost of sales	251,761	230,176	764,756	697,922
Gross profit	95,248	86,418	287,628	255,986
Operating and administrative expense	78,660	78,397	232,935	219,580
Depreciation and amortization	4,982	4,646	14,614	13,764
Operating income	11,606	3,375	40,079	22,642
Interest expense	(1,077)	(1,071)	(3,337)	(3,208)
Interest income	652	563	1,903	1,594
Income before income taxes	11,181	2,867	38,645	21,028
Income taxes	4,638	1,199	16,219	8,810
Net income	$ 6,543	$ 1,668	$ 22,426	$ 12,218
Class A Common Stock
Basic net income per share	$ 0.57	$ 0.15	$ 1.96	$ 1.09
Diluted net income per share	$ 0.47	$ 0.12	$ 1.63	$ 0.89
Class B Common Stock
Basic net income per share	$ 0.37	$ 0.10	$ 1.27	$ 0.69
Diluted net income per share	$ 0.37	$ 0.09	$ 1.26	$ 0.69