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PROPERTY AND EQUIPMENT, NET (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Cost	$ 114,623	$ 104,129
Accumulated depreciation	81,010	74,259
Depreciated cost	33,613	29,870
Depreciation expenses	7,758	7,661	$ 8,389
Changes of property and equipment	2,581	1,508
Computers, manufacturing, peripheral equipment [Member]
Property, Plant and Equipment [Line Items]
Cost	111,012	100,027
Accumulated depreciation	78,317	70,956
Office furniture and equipment [Member]
Property, Plant and Equipment [Line Items]
Cost	2,201	2,954
Accumulated depreciation	1,856	2,502
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Cost	1,410	1,148
Accumulated depreciation	$ 837	$ 801

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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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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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