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Composition Of Certain Financial Statement Captions (Schedule Of Inventories) (Details) - USD ($)
$ in Thousands
Sep. 29, 2017
Sep. 30, 2016
Composition Of Certain Financial Statement Captions [Abstract]    
Raw materials $ 6,812 $ 3,526
Work in process 4,954 4,020
Finished goods 13,285 8,808
Inventories $ 25,051 $ 16,354