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Supplemental Financial Information (Schedule Of Inventories) (Details) - USD ($) $ in Thousands | Apr. 01, 2017 | Dec. 31, 2016
--- | --- | ---
Supplemental Financial Information |  |
Raw materials | $ 1,198 | $ 884
Work in process | 151 | 47
Finished goods | 3,148 | 2,229
Inventories | $ 4,497 | $ 3,160

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