Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 5,600	$ 5,477
Accumulated Amortization	(2,503)	(2,316)
Net Carrying Value	$ 3,097	$ 3,161
Weighted Average Useful Life	7 years	7 years 3 months 18 days
Wrong Way development costs [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 228	$ 228
Accumulated Amortization	(228)	(228)
Net Carrying Value	0	0
Vision development costs [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	3,052	2,929
Accumulated Amortization	(1,645)	(1,553)
Net Carrying Value	$ 1,407	$ 1,376
Weighted Average Useful Life	8 years	8 years
Echo development costs [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 1,852	$ 1,852
Accumulated Amortization	(308)	(242)
Net Carrying Value	$ 1,544	$ 1,610
Weighted Average Useful Life	7 years	7 years
IntellitraffiQ development costs [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 468	$ 468
Accumulated Amortization	(322)	(293)
Net Carrying Value	$ 146	$ 175
Weighted Average Useful Life	4 years	4 years