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TAXES ON INCOME (Narrative) (Details) - USD ($) $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 31, 2016 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Income Tax Disclosure [Line Items] |  |  |  |  |
Statutory income tax rate |  |  | 39.00% |  |
Net operating loss carry forwards |  |  | $ 207 |  |
Scenario, Plan [Member] |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |
Statutory income tax rate |  | 21.00% |  |  |
Law for Amending the Israel Income Tax Ordinance - 2009, Tax year [Member] |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |
Statutory income tax rate | 26.50% |  |  |  |
Law for Amending the Israel Income Tax Ordinance, Tax Thereafter [Member] |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |
Statutory income tax rate | 25.00% |  |  |  |
Restricted Amount [Member] |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |
Net operating loss carry forwards |  |  | $ 23 | $ 20 |
Protalix Ltd. [Member] |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |
Statutory income tax rate |  |  | 24.00% |  |
Net operating loss carry forwards |  |  | $ 184 | $ 133 |
Protalix Ltd. [Member] | Scenario, Plan [Member] |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |
Statutory income tax rate |  | 23.00% |  |  |
Protalix Ltd. [Member] | Law for Amending the Israel Income Tax Ordinance, Tax Thereafter [Member] |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |
Statutory income tax rate |  |  |  | 25.00% | 26.50%
Minimum [Member] |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |
Statutory income tax rate |  |  | 23.00% |  |
Maximum [Member] |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |
Statutory income tax rate |  |  |  | 25.00% |

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