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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule Of Property, Plant And Equipment) (Details) - USD ($)
$ in Thousands
12 Months Ended
Oct. 01, 2021
Oct. 02, 2020
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment, gross $ 235,401 $ 219,578
Less accumulated depreciation 163,891 156,541
Property, plant and equipment, net of accumulated depreciation 71,510 63,037
Property improvements    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment, gross $ 589 589
Property improvements | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 5 years  
Property improvements | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 20 years  
Buildings and improvements    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment, gross $ 26,769 24,416
Buildings and improvements | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 20 years  
Buildings and improvements | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 40 years  
Furniture and fixtures, equipment and computer software    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment, gross $ 208,043 $ 194,573
Furniture and fixtures, equipment and computer software | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 3 years  
Furniture and fixtures, equipment and computer software | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 10 years