Segment Information (Tables)

9 Months Ended

Sep. 30, 2018

Segment Information [Abstract]

Schedule of financial information by reportable segment

The following tables set forth selected unaudited financial information for each of our reportable segments (in thousands):

	Three Months Ended September 30,
	Intersection				Highway				Total
	2018		2017		2018		2017		2018		2017
Revenue	$	2,599	$	2,852	$	1,450	$	772	$	4,049	$	3,624
Gross profit		2,386		2,577		920		445		3,306		3,022
Amortization of intangible assets		91		90		58		—		149		90
Intangible assets		2,202		2,569		1,037		827		3,239		3,396

	Nine Months Ended September 30,
	Intersection				Highway				Total
	2018		2017		2018		2017		2018		2017
Revenue	$	7,858	$	6,970	$	3,094	$	3,213	$	10,952	$	10,183
Gross profit		7,168		6,266		1,893		1,883		9,061		8,149
Amortization of intangible assets		275		270		105		—		380		270
Intangible assets		2,202		2,569		1,037		827		3,239		3,396