Intangible Assets

6 Months Ended

Jun. 30, 2016

Intangible Assets, Net (Excluding Goodwill) [Abstract]

Intangible Assets

INTANGIBLE ASSETS:

Intangible assets consist of the following:

	June 30, 2016							December 31, 2015
(In thousands)	Gross Carrying Amount		Accumulated Amortization			Net		Gross Carrying Amount		Accumulated Amortization			Net
Patents	$	2,557	$	(2,305	)	$	252	$	2,513	$	(2,253	)	$	260
Software	206		(68		)	138		206		(53		)	153
Marketing assets and customer relationships	101		(27		)	74		101		(21		)	80
Non-compete agreements	101		(58		)	43		101		(45		)	56
	$	2,965	$	(2,458	)	$	507	$	2,921	$	(2,372	)	$	549

Amortization expense for the three and six month periods ended June 30, 2016 and 2015 is as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
(In thousands)	2016		2015		2016		2015
Patents	$	26	$	27	$	52	$	56
Software	8		8		15		15
Marketing assets and customer relationships	3		2		6		5
Non-compete agreements	6		7		13		13
	$	43	$	44	$	86	$	89

Amortization of patents has been classified as research and development expense in the accompanying statements of operations. Estimated aggregate amortization expense based on current intangibles for the next five years is expected to be as follows: $86,000 for the remainder of 2016; $152,000 in 2017; $100,000 in 2018; $67,000 in 2019; $62,000 in 2020; and $40,000 in 2021.

Intangible and other long lived assets are reviewed for impairment when events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable. An impairment loss would be recognized when future undiscounted cash flows expected to result from use of the asset and eventual disposition are less than the carrying amount.