6. Intangible assets

12 Months Ended

Dec. 31, 2014

Disclosure Text Block [Abstract]

Intangible Assets Disclosure [Text Block]

6. Intangible assets

Identifiable intangible assets are recorded in Intangible assets in the accompanying Consolidated Balance Sheets and are comprised of the following:

	December 31,
	2014				2013
(In thousands)	Gross Amount		Accumulated Amortization		Gross Amount		Accumulated Amortization
Purchased technology	$	1,604	$	(1,172)	$	1,604	$	(924)
Customer relationships		1,300		(729)		1,300		(513)
Trademark		480		(162)		480		(113)
Covenant not to compete		146		(146)		146		(146)
Patents		57		(37)		57		(35)
Other		80		(80)		80		(80)
Total	$	3,667	$	(2,326)	$	3,667	$	(1,811)

Amortization expense was $515,000 in 2014, $513,000 in 2013 and $568,000 in 2012.  Amortization expense for each of the next five years ending December 31 is expected to be as follows: $456,000 in 2015; $333,000 in 2016; $244,000 in 2017; $102,000 in 2018; $99,000 in 2019 and $107,000 thereafter.