CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock Class A Common Stock	Common Stock Class B Common Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock
Balance (in shares) at Jul. 25, 2020		10,985	4,294			726
Balance at Jul. 25, 2020	$ 332,320	$ 68,072	$ 697	$ 286,241	$ (8,751)	$ (13,939)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	19,994			19,994
Other comprehensive income, net of tax	(313)			0	(313)
Dividends	(13,050)			(13,050)
Restricted shares forfeited (in shares)		(15)
Restricted shares forfeited	(71)	$ (71)
Share-based compensation expense (in shares)		8
Share-based compensation expense	2,593	$ 2,593
Balance (in shares) at Jul. 31, 2021		10,978	4,294			726
Balance at Jul. 31, 2021	341,473	$ 70,594	$ 697	293,185	(9,064)	$ (13,939)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	26,830			26,830
Other comprehensive income, net of tax	15,199				15,199
Dividends	$ (13,041)			(13,041)
Treasury stock purchases (in shares)	23					26
Treasury stock purchases	$ (649)					$ (649)
Restricted shares forfeited (in shares)		(16)
Restricted shares forfeited	(198)	$ (198)
Share-based compensation expense (in shares)		9
Share-based compensation expense	2,495	$ 2,495
Balance (in shares) at Jul. 30, 2022		10,971	4,294			752
Balance at Jul. 30, 2022	$ 372,109	$ 72,891	$ 697	$ 306,974	$ 6,135	$ (14,588)