Intangible Assets, Net (Tables)

12 Months Ended

Dec. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets

The following table summarizes the balances and activity of our intangibles:

(In thousands)		At December 31, 2015							At December 31, 2014
Category	Weighted Average Years	Gross Carrying Amount		Accumulated Amortization			Net Book Value		Gross Carrying Amount		Accumulated Amortization			Net Book Value
Developed technology	7 Years	$	1,080	$	(324	)	$	756	$	1,080	$	(215	)	$	865
Patents	10 Years	15,946		(5,000		)	10,946		15,946		(3,569		)	12,377
Trade names	7 Years	209		(62		)	147		209		(42		)	167
Customer relationships	3 Years	878		(439		)	439		878		(292		)	586
Total		$	18,113	$	(5,825	)	$	12,288	$	18,113	$	(4,118	)	$	13,995

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

Based on the intangible assets recorded as of December 31, 2015, and assuming no subsequent additions to or impairment of the underlying assets, the remaining estimated annual amortization expense is expected to be as follows:

Year	(In thousands)
2016	1,657
2017	1,602
2018	1,479
2019	1,222
Thereafter	6,328
Total	$	12,288