CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jan. 28, 2012	Jan. 29, 2011	Jan. 28, 2012	Jan. 29, 2011
Sales	$ 362,638	$ 329,917	$ 705,375	$ 637,314
Cost of sales	263,134	241,276	512,995	467,746
Gross profit	99,504	88,641	192,380	169,568
Operating and administrative expense	78,375	72,106	154,276	141,183
Depreciation and amortization	4,859	4,582	9,632	9,118
Operating income	16,270	11,953	28,472	19,267
Interest expense	(1,075)	(1,069)	(2,260)	(2,137)
Interest income	626	507	1,252	1,031
Income before income taxes	15,821	11,391	27,464	18,161
Income taxes	6,674	4,775	11,581	7,611
Net income	$ 9,147	$ 6,616	$ 15,883	$ 10,550
Class A Common Stock
Basic net income per share	$ 0.80	$ 0.59	$ 1.39	$ 0.94
Diluted net income per share	$ 0.66	$ 0.49	$ 1.15	$ 0.78
Class B Common Stock
Basic net income per share	$ 0.52	$ 0.38	$ 0.90	$ 0.61
Diluted net income per share	$ 0.52	$ 0.38	$ 0.90	$ 0.61