SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Jul. 26, 2025	Jul. 27, 2024
Numerator:
Net income allocated, diluted	$ 54,510	$ 48,596
Class A Common Stock
Numerator:
Net income allocated, basic	43,108	38,260
Conversion of Class B to Class A shares	11,402	10,336
Net income allocated, diluted	$ 54,510	$ 48,596
Denominator:
Weighted average shares outstanding, basic (in shares)	10,170	10,109
Conversion of Class B to Class A shares (in shares)	4,144	4,204
Weighted average shares outstanding, diluted (in shares)	14,314	14,313
Net income per share
Basic (in dollars per share)	$ 4.24	$ 3.78
Diluted (in dollars per share)	$ 3.81	$ 3.40
Class B Common Stock
Numerator:
Net income allocated, basic	$ 11,402	$ 10,336
Conversion of Class B to Class A shares	0	0
Net income allocated, diluted	$ 11,402	$ 10,336
Denominator:
Weighted average shares outstanding, basic (in shares)	4,144	4,204
Conversion of Class B to Class A shares (in shares)	0	0
Weighted average shares outstanding, diluted (in shares)	4,144	4,204
Net income per share
Basic (in dollars per share)	$ 2.75	$ 2.46
Diluted (in dollars per share)	$ 2.75	$ 2.46