Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2017

Goodwill and Other Intangible Assets [Abstract]

Schedule of Other Intangible Assets

Other intangible assets consisted of approximately the following at March 31, 2017 and December 31, 2016:

	March 31, 2017						December 31, 2016
	Gross Carrying Amount		Accumulated Amortization		Remaining Useful Life		Gross Carrying Amount		Accumulated Amortization		Remaining Useful Life
Developed technology	$	6,200,000	$	1,771,000		5.0	$	6,200,000	$	1,550,000		5.25
Patents		5,653,000		5,623,000		8.0		5,653,000		5,616,000		8.25
Trademarks and trade names		190,000		77,000		8.0		190,000		75,000		8.25
Customer relationships		7,270,000		2,950,000		3.0		7,270,000		2,590,000		3.25
	$	19,313,000	$	10,421,000			$	19,313,000	$	9,831,000
Accumulated amortization		10,421,000						9,831,000
Net book value of amortizable intangible assets	$	8,892,000				3.98	$	9,482,000				4.23

Estimated Amortization Expense for all Intangible Assets

Estimated amortization expense for all intangible assets as of March 31, 2017 is approximately as follows:

April 1, 2017 through December 31, 2017	$	1,760,000
2018		2,345,000
2019		2,339,000
2020		1,252,000
2021		892,000
Thereafter		228,000