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Supplemental Financial Information (Schedule Of Inventories) (Details) - USD ($)
$ in Thousands
Dec. 28, 2019
Dec. 29, 2018
Supplemental Financial Information    
Raw materials $ 1,052 $ 1,072
Work in process 25 25
Finished goods 2,419 1,849
Inventories $ 3,496 $ 2,946