SEGMENT INFORMATION (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Revenue	$ 23,053us-gaap_Revenues	$ 26,290us-gaap_Revenues	$ 24,963us-gaap_Revenues
Gross profit	15,012us-gaap_GrossProfit	16,401us-gaap_GrossProfit	18,257us-gaap_GrossProfit
Goodwill impairment			3,175
Amortization of intangible assets	1,558us-gaap_AmortizationOfIntangibleAssets	1,554us-gaap_AmortizationOfIntangibleAssets	1,622us-gaap_AmortizationOfIntangibleAssets
Intangible assets, net	3,987	6,463	6,489
Intersection [Member]
Segment Reporting Information [Line Items]
Revenue	11,357	13,428	16,031
Gross profit	10,305	11,559	14,010
Highway [Member]
Segment Reporting Information [Line Items]
Revenue	6,786	6,414	4,118
Gross profit	3,255	1,862	1,798
Goodwill impairment			1,372
Amortization of intangible assets	488	488	748
Intangible assets, net	454	942	1,430
LPR [Member]
Segment Reporting Information [Line Items]
Revenue	4,910	6,448	4,814
Gross profit	1,452	2,980	2,449
Goodwill impairment			1,803
Amortization of intangible assets	1,070	1,066	874
Intangible assets, net	$ 3,533	$ 5,521	$ 5,059

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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 45

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-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274

Reference 2: http://www.xbrl.org/2003/role/presentationRef

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

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