INCOME TAXES - Additional Information (Details) - USD ($)	12 Months Ended
	Jul. 31, 2021	Jul. 25, 2020
Income Tax Examination [Line Items]
Deferred tax assets, valuation allowance	$ 0	$ 0
Incremental benefit from a federal net operating loss carryback		$ 2,512,000
Minimum
Income Tax Examination [Line Items]
Income tax examination, statue of limitations, period	3 years
Maximum
Income Tax Examination [Line Items]
Income tax examination, statue of limitations, period	4 years