SIGNIFICANT ACCOUNTING POLICIES (Estimated Useful Lives of Property and Equipment) (Details)	12 Months Ended
	Dec. 31, 2019
Buildings and plants [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, depreciation rate	2.50%
Buildings and plants [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, depreciation rate	2.00%
Buildings and plants [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, depreciation rate	5.00%
Computers and peripheral equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, depreciation rate	33.00%
Computers and peripheral equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, depreciation rate	20.00%
Computers and peripheral equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, depreciation rate	33.00%
Office furniture and fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, depreciation rate	7.00%
Office furniture and fixtures [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, depreciation rate	7.00%
Office furniture and fixtures [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, depreciation rate	25.00%
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, depreciation rate	10.00%
Machinery and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, depreciation rate	7.00%
Machinery and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, depreciation rate	33.00%
Laboratory Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, depreciation rate	15.00%
Laboratory Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, depreciation rate	10.00%
Laboratory Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, depreciation rate	20.00%