Note 12 — Intangible Assets Other Than Goodwill

Intangible assets other than goodwill consist primarily of licenses, product lines, customer relationships and trademarks. Amortized intangible assets are included in intangibles in the accompanying condensed consolidated balance sheets. Trademarks are disclosed separately in the accompanying condensed consolidated balance sheets. Intangible assets as of March 31, 2018 and December 31, 2017 include the following (in thousands, except for weighted useful lives):

			March 31, 2018							December 31, 2017
	Weighted Useful Lives		Gross Carrying Amount		Accumulated Amortization			Net Amount		Gross Carrying Amount		Accumulated Amortization			Net Amount
	(Years)
Amortized Intangible Assets:
Licenses		5.81	$	20,130	$	(18,900	)	$	1,230	$	20,130	$	(18,620	)	$	1,510
Product lines		10.36		33,858		(14,065	)		19,793		33,858		(13,178	)		20,680
Customer relationships		4.90		3,152		(3,152	)		—		3,152		(3,152	)		—
Trade names		5.00		3,000		(3,000	)		—		3,000		(3,000	)		—
Non-compete agreements		5.00		200		(200	)		—		200		(200	)		—
Total amortized intangible assets			$	60,340	$	(39,317	)	$	21,023	$	60,340	$	(38,150	)	$	22,190
Unamortized Intangible Assets:
Trademarks			$	300	$	—		$	300	$	300	$	—		$	300