SIGNIFICANT ACCOUNTING POLICIES (property, plant and equipment) (Details)	12 Months Ended
	Dec. 31, 2020
Building [Member]
Property, plant and equipment [Line Items]
Useful life	40 years
Machinery and equipment [Member] | Minimum [Member]
Property, plant and equipment [Line Items]
Useful life	1 year
Machinery and equipment [Member] | Maximum [Member]
Property, plant and equipment [Line Items]
Useful life	11 years
Machinery and equipment [Member] | Weighted-average [Member]
Property, plant and equipment [Line Items]
Useful life	7 years