Intangible Assets

9 Months Ended

Sep. 30, 2014

Intangible Assets, Net (Excluding Goodwill) [Abstract]

Intangible Assets

INTANGIBLE ASSETS:

Intangible assets consist of the following:

	September 30, 2014							December 31, 2013
(In thousands)	Gross Carrying Amount		Accumulated Amortization			Net		Gross Carrying Amount		Accumulated Amortization			Net
Patents	$	3,146	$	(2,863	)	$	283	$	2,915	$	(2,779	)	$	136
Software	206		(16		)	190		—		—			—
Marketing assets and customer relationships	101		(6		)	95		—		—			—
Non-compete agreements	101		(14		)	87		—		—			—
	$	3,554	$	(2,899	)	$	655	$	2,915	$	(2,779	)	$	136

The weighted average amortization period for our intangible assets is as follows: patents five years, software seven years, marketing assets and customer relationships nine years, and non-compete agreements four years. Amortization expense for the three and nine month periods ended September 30, 2014 and 2013 is as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2014		2013		2014		2013
Patents	$	30	$	30	$	84	$	95
Software	7		—		16		—
Marketing assets and customer relationships	2		—		6		—
Non-compete agreements	7		—		14		—
	$	46	$	30	$	120	$	95

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: $43,000 for the remainder of 2014, $154,000 in 2015, $126,000 in 2016, $101,000 in 2017, $68,000 in 2018 and $62,000 in 2019.

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.