SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule Of Property, Plant And Equipment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 02, 2020	Sep. 27, 2019
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 219,578	$ 202,527
Less accumulated depreciation	156,541	143,028
Property, plant and equipment, net of accumulated depreciation	63,037	59,499
Property improvements
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 589	588
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	$ 24,416	23,231
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	$ 194,573	$ 178,708
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