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DEBT - Schedule of Long-term Debt (Details) - USD ($)
$ in Thousands
Oct. 24, 2020
Jul. 25, 2020
Debt Instrument [Line Items]    
Total debt, excluding obligations under leases $ 79,162 $ 80,615
Less current portion 6,976 6,421
Total long-term debt, excluding obligations under leases 72,186 74,194
Line of Credit [Member] | Revolving Credit Facility [Member]    
Debt Instrument [Line Items]    
Total debt, excluding obligations under leases 0 50,000
Line of Credit [Member] | Secured Debt [Member]    
Debt Instrument [Line Items]    
Total debt, excluding obligations under leases 49,505 0
Line of Credit [Member] | Medium-term Notes [Member]    
Debt Instrument [Line Items]    
Total debt, excluding obligations under leases 23,797 24,694
Notes Payable to Banks [Member]    
Debt Instrument [Line Items]    
Total debt, excluding obligations under leases $ 5,860 $ 5,921