CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock Common Class A	Common Stock Common Class B	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock, Common
Balance (in shares) at Jul. 29, 2023		11,563	4,204			912
Balance at Jul. 29, 2023	$ 410,166	$ 76,179	$ 683	$ 343,497	$ 8,134	$ (18,327)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	11,585			11,585
Other comprehensive income, net of tax	702				702
Dividends	(3,350)			(3,350)
Restricted shares forfeited	(28)	$ (28)
Treasury stock purchases (in shares)						32
Treasury stock purchases	(782)					$ (782)
Restricted shares forfeited (in shares)		(9)
Share-based compensation expense (in shares)		14
Share-based compensation expense	952	$ 952
Balance (in shares) at Oct. 28, 2023		11,568	4,204			944
Balance at Oct. 28, 2023	419,245	$ 77,103	$ 683	351,732	8,836	$ (19,109)
Balance (in shares) at Jul. 27, 2024		11,559	4,204			999
Balance at Jul. 27, 2024	447,559	$ 80,186	$ 683	380,618	6,579	$ (20,507)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	12,803			12,803
Other comprehensive income, net of tax	(460)				(460)
Dividends	(3,324)			(3,324)
Stock Issued During Period, Shares, Employee Stock Purchase Plans						(1)
Exercise of stock options	22	6				$ 16
Restricted shares forfeited	(44)	$ (44)
Restricted shares forfeited (in shares)		(4)
Share-based compensation expense (in shares)		0
Share-based compensation expense	906	$ 906
Conversion of Class B shares to Class A shares (in shares)		79	(79)
Conversion of Class B shares to Class A shares		$ 13	$ (13)
Balance (in shares) at Oct. 26, 2024		11,634	4,125			998
Balance at Oct. 26, 2024	$ 457,462	$ 81,067	$ 670	$ 390,097	$ 6,119	$ (20,491)