CONSOLIDATED BALANCE SHEETS (Parenthetical) - shares	Jul. 27, 2024	Jul. 29, 2023
Preferred stock shares authorized (in shares)	10,000,000	10,000,000
Preferred stock shares issued (in shares)	0	0
Common stock shares issued (in shares)		4,204,000
Common stock shares outstanding (in shares)		4,204,000
Class A Common Stock
Common stock shares authorized (in shares)	20,000,000	20,000,000
Common stock shares issued (in shares)	11,559,000	11,563,000
Treasury stock (in shares)	999,000	912,000
Class B Common Stock
Common stock shares authorized (in shares)	20,000,000	20,000,000
Common stock shares issued (in shares)	4,204,000
Common stock shares outstanding (in shares)	4,204,000