6. Intangible assets (Tables)

12 Months Ended

Dec. 31, 2013

Disclosure Text Block [Abstract]

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	December 31,
	2013				2012
(In thousands)	Gross Amount		Accumulated Amortization		Gross Amount		Accumulated Amortization
Purchased technology	$	1,604	$	(924)	$	1,563	$	(679)
Customer relationships		1,300		(513)		1,300		(296)
Trademark		480		(113)		480		(65)
Covenant not to compete		146		(146)		146		(146)
Patents		57		(35)		57		(32)
Other		80		(80)		80		(80)
Total	$	3,667	$	(1,811)	$	3,626	$	(1,298)