SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Jul. 29, 2023	Jul. 30, 2022
Numerator:
Net income allocated, diluted	$ 48,127	$ 26,053
Class A Common Stock
Numerator:
Net income allocated, basic	37,639	20,311
Conversion of Class B to Class A shares	10,487	5,742
Net income allocated, diluted	$ 48,127	$ 26,053
Denominator:
Weighted average shares outstanding, basic (in shares)	9,949	9,869
Conversion of Class B to Class A shares (in shares)	4,281	4,294
Weighted average shares outstanding, diluted (in shares)	14,230	14,163
Net income per share
Basic (in dollars per share)	$ 3.78	$ 2.06
Diluted (in dollars per share)	$ 3.38	$ 1.84
Class B Common Stock
Numerator:
Net income allocated, basic	$ 10,487	$ 5,742
Conversion of Class B to Class A shares	0	0
Net income allocated, diluted	$ 10,487	$ 5,742
Denominator:
Weighted average shares outstanding, basic (in shares)	4,281	4,294
Conversion of Class B to Class A shares (in shares)	0	0
Weighted average shares outstanding, diluted (in shares)	4,281	4,294
Net income per share
Basic (in dollars per share)	$ 2.45	$ 1.34
Diluted (in dollars per share)	$ 2.45	$ 1.34