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TAXES ON INCOME (Narrative) (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2018 | Dec. 31, 2019
Income Tax Disclosure [Line Items] |  |  |
Net operating loss carry forwards | $ 231.4 |  | $ 213.1
Parent Company [Member] |  |  |
Income Tax Disclosure [Line Items] |  |  |
Net operating loss carry forwards | 30.9 |  | 29.0
Protalix Ltd. [Member] |  |  |
Income Tax Disclosure [Line Items] |  |  |
Net operating loss carry forwards | $ 200.5 |  | $ 184.1
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% |
Maximum [Member] |  |  |
Income Tax Disclosure [Line Items] |  |  |
Statutory income tax rate | 27.00% |  |

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