CONSOLIDATED BALANCE SHEETS (Parenthetical) - shares	Jan. 25, 2025	Jul. 27, 2024
Preferred stock shares authorized (in shares)	10,000,000	10,000,000
Preferred stock shares issued (in shares)	0	0
Common Class A
Common stock shares authorized (in shares)	20,000,000	20,000,000
Common stock shares issued (in shares)	11,620,000	11,559,000
Treasury shares (in shares)	998,000	999,000
Common Class B
Common stock shares authorized (in shares)	20,000,000	20,000,000
Common stock shares issued (in shares)	4,125,000	4,204,000
Common stock shares outstanding (in shares)	4,125,000	4,204,000