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PROPERTY AND EQUIPMENT, NET (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Cost	$ 128,620	$ 124,437
Accumulated depreciation	96,872	89,572
Depreciated cost	31,748	34,865
Depreciation expenses	10,668	9,555	$ 7,758
Changes of property and equipment	1,562	1,058
Computers, manufacturing, peripheral equipment [Member]
Property, Plant and Equipment [Line Items]
Cost	125,097	120,796
Accumulated depreciation	94,294	86,892
Office furniture and equipment [Member]
Property, Plant and Equipment [Line Items]
Cost	1,959	1,925
Accumulated depreciation	1,500	1,577
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Cost	1,564	1,716
Accumulated depreciation	$ 1,078	$ 1,103

X

- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount of increase (decrease) of physical assets used in the normal conduct of business and not intended for resale, from reclassification, impairment, donation, or changes classified as other. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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