PROPERTY AND EQUIPMENT (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Cost	$ 29,837	$ 30,551
Accumulated depreciation	19,473	19,712
Depreciated cost	10,364	10,839
Depreciation expenses	3,030	3,174	2,815
Installed products [Member]
Cost	4,640	5,111
Accumulated depreciation	3,786	4,170
Computers and electronic equipment [Member]
Cost	6,831	6,252
Accumulated depreciation	5,534	5,241
Office furniture and equipment [Member]
Cost	756	1,009
Accumulated depreciation	528	577
Motor vehicles [Member]
Cost	11,412	12,243
Accumulated depreciation	4,732	5,142
Network installation [Member]
Cost	4,228	4,164
Accumulated depreciation	3,973	3,837
Buildings [Member]
Cost	510	499
Accumulated depreciation	46	35
Leasehold improvements [Member]
Cost	1,460	1,273
Accumulated depreciation	$ 874	$ 710

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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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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- Definition

Gross amount of long-lived 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, furniture and fixtures, and computer equipment.

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- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived 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, furniture and fixtures, and computer equipment.

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