CONSOLIDATED STATMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended
	Oct. 24, 2020	Oct. 26, 2019
Sales	$ 490,136	$ 407,402
Cost of sales	352,173	293,856
Gross profit	137,963	113,546
Operating and administrative expense	124,363	103,140
Depreciation and amortization	8,714	7,438
Operating income	4,886	2,968
Interest expense	(987)	(567)
Interest income	891	1,259
Income before income taxes	4,790	3,660
Income taxes	1,430	1,093
Net income	$ 3,360	$ 2,567
Common Class A [Member]
Net income per share:
Basic (in dollars per share)	$ 0.26	$ 0.20
Diluted (in dollars per share)	0.23	0.18
Common Class B [Member]
Net income per share:
Basic (in dollars per share)	0.17	0.13
Diluted (in dollars per share)	$ 0.17	$ 0.13