NET INCOME PER SHARE - Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 27, 2024	Apr. 29, 2023	Apr. 27, 2024	Apr. 29, 2023
Class of Stock [Line Items]
Net income	$ 8,966	$ 11,017	$ 35,030	$ 34,422
Distributed and allocated undistributed Net income to unvested restricted shareholders	330	370	1,310	1,013
Net income available to Class A and Class B shareholders	8,636	10,647	33,720	33,409
Numerator:
Net income allocated, basic	8,636	10,647	33,720	33,409
Common Class A
Class of Stock [Line Items]
Net income available to Class A and Class B shareholders	6,798	8,311	26,550	26,055
Numerator:
Net income allocated, basic	6,798	8,311	26,550	26,055
Conversion of Class B to Class A shares	1,838	2,336	7,170	7,354
Net income allocated, diluted	$ 8,636	$ 10,647	$ 33,720	$ 33,409
Denominator:
Weighted average shares outstanding, basic (in shares)	10,092	9,863	10,112	9,863
Conversion of Class B to Class A shares (in shares)	4,204	4,294	4,204	4,294
Weighted average shares outstanding, diluted (in shares)	14,296	14,157	14,316	14,157
Common Class B
Class of Stock [Line Items]
Net income available to Class A and Class B shareholders	$ 1,838	$ 2,336	$ 7,170	$ 7,354
Numerator:
Net income allocated, basic	1,838	2,336	7,170	7,354
Conversion of Class B to Class A shares	0	0	0	0
Net income allocated, diluted	$ 1,838	$ 2,336	$ 7,170	$ 7,354
Denominator:
Weighted average shares outstanding, basic (in shares)	4,204	4,294	4,204	4,294
Conversion of Class B to Class A shares (in shares)	0	0	0	0
Weighted average shares outstanding, diluted (in shares)	4,204	4,294	4,204	4,294