Intangible Assets

12 Months Ended

Dec. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets, net

Intangible Assets, net

The following table summarizes our major classes of intangible assets (in thousands):

	December 31,
	2015			2014
Patents	$	1,081		$	1,067
Licenses	379			379
	1,460			1,446
Accumulated amortization	(379		)	(296		)
Intangibles, net	$	1,081		$	1,150

Intangible asset amortization of $0.1 million was recorded for each of the years ended December 31, 2015, 2014 and 2013, respectively. Amortization of these intangible assets over the next five years is expected to be approximately $0.1 million per year.