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TAXES ON INCOME (Narrative) (Details) - USD ($) $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 22, 2017 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Income Tax Disclosure [Line Items] |  |  |  |  |  |
Statutory income tax rate |  |  | 27.00% | 35.00% |  |
Net operating loss carry forwards |  |  | $ 211 |  |  |
Effective Income Tax Rate Reconciliation, Limitation of Net Operating Lost Deduction |  |  | 80.00% |  |  |
Effective Income Tax Rate Reconciliation, The Maximum Percentage of Interest |  |  | 30.00% |  |  |
Restricted Amount [Member] |  |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |  |
Net operating loss carry forwards |  |  | $ 26 | $ 23 |  |
Domestic Tax Authority [Member] |  |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |  |
Statutory income tax rate |  |  | 21.00% |  |  |
Protalix Ltd. [Member] |  |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |  |
Statutory income tax rate |  | 23.00% |  |  |  |
Net operating loss carry forwards |  |  | $ 185 | $ 182 |  |
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 |  |  | 23.00% | 24.00% | 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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