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Property Plant And Equipment (Schedule Of Property Plant And Equipment) (Detail) - USD ($)
$ in Thousands
12 Months Ended
Jul. 03, 2021
Jun. 27, 2020
Property, Plant and Equipment [Line Items]    
Land $ 4,034 $ 4,034
Buildings and improvements 25,513 23,444
Equipment 77,509 72,151
Furniture and fixtures 5,271 4,883
Total Property, Plant and Equipment 112,327 104,512
Accumulated depreciation (76,592) (72,748)
Property, plant and equipment, net $ 35,735 $ 31,764
Buildings and improvements | Minimum    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Useful Life 3 years  
Buildings and improvements | Maximum    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Useful Life 30 years  
Equipment | Minimum    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Useful Life 1 year  
Equipment | Maximum    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Useful Life 10 years  
Furniture and fixtures | Minimum    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Useful Life 3 years  
Furniture and fixtures | Maximum    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Useful Life 5 years