SEGMENT INFORMATION (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Revenue	$ 14,561	$ 14,524
Gross profit	11,775	11,599
Amortization of intangible assets	530	362
Intangible assets	3,317	3,485
Intersection [Member]
Segment Reporting Information [Line Items]
Revenue	10,052	10,109
Gross profit	9,168	9,048
Amortization of intangible assets	367	362
Intangible assets	2,110	2,477
Highway [Member]
Segment Reporting Information [Line Items]
Revenue	4,509	4,415
Gross profit	2,607	2,551
Amortization of intangible assets	163	0
Intangible assets	$ 1,207	$ 1,008

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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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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