Segment Information (Tables)

3 Months Ended

Mar. 31, 2022

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 March 31,
	Intersection				Highway				Total
	2022		2021		2022		2021		2022		2021
Revenue	$	1,982	$	1,892	$	770	$	1,087	$	2,752	$	2,979
Gross profit		1,769		1,724		367		549		2,136		2,273
Amortization of intangible assets		105		92		95		95		200		187
Intangible assets		1,671		1,407		1,308		1,690		2,979		3,097