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TAXES ON INCOME (Narrative) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Income Tax Disclosure [Line Items] |  |  |
Statutory income tax rate | 21.00% | 35.00% |
Net operating loss carry forwards | $ 213.1 |  |
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 | $ 29.0 | $ 26.0 |
Protalix Ltd. [Member] |  |  |
Income Tax Disclosure [Line Items] |  |  |
Statutory income tax rate | 23.00% |  |
Net operating loss carry forwards | $ 184.1 | $ 185.0 |
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%
Minimum [Member] | Protalix Ltd. [Member] |  |  |
Income Tax Disclosure [Line Items] |  |  |
Statutory income tax rate |  | 23.00% |
Maximum [Member] |  |  |
Income Tax Disclosure [Line Items] |  |  |
Statutory income tax rate | 27.00% |  |
Maximum [Member] | Protalix Ltd. [Member] |  |  |
Income Tax Disclosure [Line Items] |  |  |
Statutory income tax rate |  |  | 25.00%

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