Segment Information (Tables)

9 Months Ended

Sep. 30, 2021

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
	2021		2020		2021		2020		2021		2020
Revenue	$	2,677	$	2,502	$	595	$	1,248	$	3,272	$	3,750
Gross profit		2,456		2,228		231		639		2,687		2,867
Amortization of intangible assets		105		92		95		95		200		187
Intangible assets		1,260		1,468		1,499		1,880		2,759		3,348

	Nine Months Ended September 30,
	Intersection				Highway				Total
	2021		2020		2021		2020		2021		2020
Revenue	$	7,206	$	7,217	$	2,833	$	3,079	$	10,039	$	10,296
Gross profit		6,617		6,530		1,304		1,649		7,921		8,179
Amortization of intangible assets		293		275		286		274		579		549
Intangible assets		1,260		1,468		1,499		1,880		2,759		3,348