SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Jul. 27, 2024	Jul. 29, 2023
Numerator:
Net income allocated, diluted	$ 48,596	$ 48,126
Class A Common Stock
Numerator:
Net income allocated, basic	38,260	37,639
Conversion of Class B to Class A shares	10,336	10,487
Net income allocated, diluted	$ 48,596	$ 48,126
Denominator:
Weighted average shares outstanding, basic (in shares)	10,109	9,949
Conversion of Class B to Class A shares (in shares)	4,204	4,281
Weighted average shares outstanding, diluted (in shares)	14,313	14,230
Net income per share
Basic (in dollars per share)	$ 3.78	$ 3.78
Diluted (in dollars per share)	$ 3.40	$ 3.38
Class B Common Stock
Numerator:
Net income allocated, basic	$ 10,336	$ 10,487
Conversion of Class B to Class A shares	0	0
Net income allocated, diluted	$ 10,336	$ 10,487
Denominator:
Weighted average shares outstanding, basic (in shares)	4,204	4,281
Conversion of Class B to Class A shares (in shares)	0	0
Weighted average shares outstanding, diluted (in shares)	4,204	4,281
Net income per share
Basic (in dollars per share)	$ 2.46	$ 2.45
Diluted (in dollars per share)	$ 2.46	$ 2.45