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Inventories (Narrative) (Details) - USD ($) | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Inventory [Line Items] |  |
Inventory reserves, obsolescence and discontinuance | $ 300,000 | $ 200,000
Inventory, Noncurrent | 15,749,000 | $ 0
VIBATIV |  |
Inventory [Line Items] |  |
Inventory, Noncurrent | $ 800,000 |

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