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Inventories (Inventories) (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Inventories [Abstract] |  |  |
Components |  | $ 13,062 | $ 9,690
Work in process |  | 7,654 | 6,584
Finished products | [1] | 11,449 | 6,445
Total inventories |  | 32,165 | 22,719
Current assets |  | 30,109 | 21,336
Long-term assets (A) |  | $ 2,056 | $ 1,383
[1] | includes systems at customer locations not yet sold, as of December 31, 2018 and 2017, in the amount of $7,546 and $3,425 respectively.

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