Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2017

Goodwill and Other Intangible Assets [Abstract]

Schedule of Other Intangible Assets

Other intangible assets consisted of approximately the following at reporting dates presented below:

	December 31, 2017						December 31, 2016
	Gross Carrying Amount		Accumulated  Amortization		Weighted Average Amortization  period		Gross Carrying Amount		Accumulated Amortization		Weighted Average  Amortization period
Developed technology	$	6,200,000	$	2,436,000		4.25	$	6,200,000	$	1,550,000		5.25
Patents & trademarks		5,653,000		5,634,000		7.25		5,653,000		5,616,000		8.25
Trademarks and trade names		190,000		84,000		7.25		190,000		75,000		8.25
Customer relationships		7,540,000		4,067,000		2.27		7,270,000		2,590,000		3.25
		19,583,000	$	12,221,000				19,313,000	$	9,831,000
Accumulated amortization		12,221,000						9,831,000
Net book value of amortizable intangible assets	$	7,362,000				3.22	$	9,482,000				4.23

Estimated Amortization Expense for all Intangible Assets

Estimated amortization expense for all intangible assets for the five years subsequent to December 31, 2017 is as follows:

Year ending December 31,
2018	$	2,437,000
2019		2,431,000
2020		1,307,000
2021		894,000
2022		230,000
Thereafter		63,000
Total	$	7,362,000