Other Intangible Assets, Other than Goodwill

12 Months Ended

Dec. 31, 2013

Intangible Assets, Net (Excluding Goodwill) [Abstract]

Intangible Assets Disclosure [Text Block]

Note 8.

Other Intangible Assets, Other than Goodwill

	December 31, 2012
			Weighted
	Gross		average
	carrying		amortization	Accumulated
	amount		period	amortization
	(in thousands)
Amortized intangible assets:
Technology	$	11,774	7 years		5,762
Customer relationship		8,100	7 years		6,847
Patents		842	6 years		686
Total	$	20,716			13,295
Unamortized intangible assets:
In-process research and development	$	722

	December 31, 2013
			Weighted
	Gross		average
	carrying		amortization	Accumulated
	amount		period	amortization
	(in thousands)
Amortized intangible assets:
Technology	$	11,774	7 years		7,430
Customer relationship		8,100	7 years		8,004
Patents		842	6 years		770
Total	$	20,716			16,204
Unamortized intangible assets:
In-process research and development	$	722

Amortization expense for the years ended December 31, 2011, 2012 and 2013 was $2,180 thousand, $2,508 thousand and $2,909 thousand, respectively. Estimated amortization expense for the next five years is $953 thousand in 2014, and $783 thousand in 2015, 2016, 2017 and 2018.