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Long Term Assets (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Long Term Assets [Abstract] |  |
Prepaid expenses related to SEDA (see Note 15a1) | $ 77 | $ 112
Other | 78 | 65
Long term assets | $ 155 | $ 177

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