Goodwill and Other Intangible Assets

The Company's goodwill was $7.0 million as of June 30, 2016 and December 31, 2015. All goodwill resides in the PCT reporting unit.

The Company's intangible assets and related accumulated amortization as of June 30, 2016 and December 31, 2015 consisted of the following (in thousands):



		June 30, 2016							December 31, 2015
	Useful Life	Gross		Accumulated Amortization			Net		Gross		Accumulated Amortization			Net
Customer list	10 years	$	1,000.0	$	(545.1	)	$	454.9	$	1,000.0	$	(495.1	)	$	504.9
Manufacturing technology	10 years	3,900.0		(2,125.9		)	1,774.1		3,900.0		(1,930.9		)	1,969.1
Tradename	10 years	800.0		(436.1		)	363.9		800.0		(396.1		)	403.9
Total Intangible Assets		$	5,700.0	$	(3,107.1	)	$	2,592.9	$	5,700.0	$	(2,822.1	)	$	2,877.9

Total intangible amortization expense was classified in the operating expense categories for the periods included below as follows (in thousands):



	Three Months Ended June 30,				Six Months Ended June 30,
	2016		2015		2016		2015
Cost of revenue	$	77.7	$	79.2	$	157.3	$	153.9
Research and development	19.8		27.1		37.7		58.7
Selling, general and administrative	45.0		45.0		90.0		90.0
Total	$	142.5	$	151.3	$	285.0	$	302.6

Estimated intangible amortization expense for the succeeding five years is as follows (in thousands):



2016	$	285
2017	570.0
2018	570.0
2019	570.0
2020	570.0
Thereafter	27.9
Total	$	2,592.9