Other Intangible Assets, Other than Goodwill

12 Months Ended

Dec. 31, 2015

Intangible Assets, Net (Excluding Goodwill) [Abstract]

Intangible Assets Disclosure [Text Block]

Note 8.

Other Intangible Assets, Other than Goodwill

	December 31, 2014
			Weighted
	Gross		average
	carrying		amortization		Accumulated
	amount		period		amortization
			(in thousands)
Amortized intangible assets:
Technology	$	11,774		7 years		8,281
Customer relationship		8,100		7 years		8,100
Patents		842		6 years		776
Total	$	20,716				17,157
Unamortized intangible assets:
In-process research and development	$	722

	December 31, 2015
			Weighted
	Gross		average
	carrying		amortization		Accumulated
	amount		period		amortization
	(in thousands)
Amortized intangible assets:
Technology	$	13,228		7 years		9,126
Customer relationship		8,100		7 years		8,100
Patents		842		6 years		783
Total	$	22,170				18,009

Amortization expense for the years ended December 31, 2013, 2014 and 2015 was $2,909 thousand, $953 thousand and $852 thousand, respectively. Estimated amortization expense for the next five years is $991 thousand in 2016, 2017 and 2018, $602 thousand in 2019, and $214 thousand in 2020.