Intangibles (Tables)

9 Months Ended

Sep. 30, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Amortization of Intangible Assets Acquired

Amortization of intangible assets acquired is calculated using the straight-line method over the estimated useful lives of the assets, generally ranging from one to seven years.

	September 30,  2015			December 31, 2014
Capitalized patent costs	$	6,722		$	6,183
Intangible assets acquired:
Purchased patents and intellectual property		250			250
Existing technology		1,560			1,560
Customer relationships		290			290
Backlog		760			760
Tradenames		290			290
Non-solicitation agreements		120			120
Gross intangible assets		9,992			9,453
Accumulated amortization		(3,269	)		(2,733	)
Intangibles, net	$	6,723		$	6,720