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]
Net operating loss carry forwards				$ 153
Scenario, Forecast [Member]
Income Tax Disclosure [Line Items]
Statutory income tax rate		23.00%	24.00%
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				20	$ 19
Protalix Ltd. [Member]
Income Tax Disclosure [Line Items]
Net operating loss carry forwards				$ 133	$ 102
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%	39.00%
Maximum [Member]
Income Tax Disclosure [Line Items]
Statutory income tax rate				25.00%