Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2018

Intangible Assets [Abstract]

Schedule of intangible assets

Intangible assets consisted of the following (dollars in thousands):            

	March 31, 2018
								Weighted
	Gross					Net		Average
	Carrying		Accumulated			Carrying		Useful Life
	Amount		Amortization			Value		(in Years)
Developed technology	$	3,900	$	(3,900	)	$	—	—
Vision development costs		2,929		(544	)		2,385	8.0
Software development in process costs		846		—			846	—
Wrong Way development costs		228		(19	)		209	2.0
Total	$	7,903	$	(4,463	)	$	3,440	7.6

	December 31, 2017
								Weighted
	Gross					Net		Average
	Carrying		Accumulated			Carrying		Useful Life
	Amount		Amortization			Value		(in Years)
Developed technology	$	3,900	$	(3,900	)	$	—	—
Vision development costs		2,929		(452	)		2,477	8.0
Software development in process costs		1,008		—			1,008	—
	$	7,837	$	(4,352	)	$	3,485	8.0