CONSOLIDATED BALANCE SHEETS (Parenthetical) - shares	Jul. 29, 2023	Jul. 30, 2022
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)		4,294,000
Common stock shares outstanding (in shares)		4,294,000
Class A Common Stock
Common stock shares authorized (in shares)	20,000,000	20,000,000
Common stock shares issued (in shares)	11,563,000	10,971,000
Treasury stock (in shares)	912,000	752,000
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