DEBT - Schedule of Long-term Debt (Details) - USD ($) $ in Thousands	Jan. 23, 2021	Jul. 25, 2020
Debt Instrument [Line Items]
Total debt, excluding obligations under leases	$ 77,377	$ 80,615
Less current portion	6,976	6,421
Total long-term debt, excluding obligations under leases	70,401	74,194
Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Total debt, excluding obligations under leases	0	50,000
Line of Credit \| Secured Debt
Debt Instrument [Line Items]
Total debt, excluding obligations under leases	48,679	0
Line of Credit \| Medium-term Notes
Debt Instrument [Line Items]
Total debt, excluding obligations under leases	22,900	24,694
Notes Payable to Banks
Debt Instrument [Line Items]
Total debt, excluding obligations under leases	$ 5,798	$ 5,921

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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