Intangible Assets, net (Tables)

9 Months Ended

Sep. 30, 2019

Intangible Assets, net

Intangible Assets, net

Intangible assets consisted of the following for the periods indicated (in thousands):

	September 30, 2019
	Gross		Accumulated		Intangible
	Amount		amortization		assets, net
Patents	$	7,472	$	(3,403)	$	4,069
Trademarks		16		(13)		3
Total intangible assets	$	7,488	$	(3,416)	$	4,072

	December 31, 2018
	Gross		Accumulated		Intangible
	Amount		amortization		assets, net
Patents	$	6,983	$	(3,008)	$	3,975
Trademarks		15		(13)		2
Total intangible assets	$	6,998	$	(3,021)	$	3,977