Goodwill and Other Intangible Assets

The Company's goodwill was $25.2 million as of March 31, 2015 and December 31, 2014.

The Company's intangible assets and related accumulated amortization as of March 31, 2015 and December 31, 2014 consisted of the following (in thousands):



		March 31, 2015							December 31, 2014
	Useful Life	Gross		Accumulated Amortization			Net		Gross		Accumulated Amortization			Net
Customer list	10 years	$	1,000.0	$	(420.1	)	$	579.9	$	1,000.0	$	(395.1	)	$	604.9
Manufacturing technology	10 years	3,900.0		(1,638.4		)	2,261.6		3,900.0		(1,540.9		)	2,359.1
Tradename	10 years	800.0		(336.1		)	463.9		800.0		(316.1		)	483.9
In process R&D	Indefinite	43,690.0		—			43,690.0		43,690.0		—			43,690.0
Patent rights	19 years	669.0		(255.3		)	413.7		669.0		(246.5		)	422.5
Total Intangible Assets		$	50,059.0	$	(2,649.9	)	$	47,409.1	$	50,059.0	$	(2,498.6	)	$	47,560.4

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



	Three Months Ended March 31,
	2015		2014
Cost of revenue	$	79.2	$	79.2
Research and development	27.1		27.1
Selling, general and administrative	45.0		45.0
Total	$	151.3	$	151.3

Estimated intangible amortization expense on an annual basis for the succeeding five years is as follow (in thousands):



2015	$	453.9
2016	605.2
2017	605.2
2018	605.2
2019	605.2
Thereafter	44,534.4
Total	$	47,409.1