Segment and Enterprise-Wide Disclosures (Tables)

9 Months Ended

Sep. 30, 2013

Segment Reporting [Abstract]

Net sales to unaffiliated customers by geography

Net sales to unaffiliated customers by country were as follows:

	Three months ended				Nine months ended
	September 30,				September 30,
	2013		2012		2013		2012
	(in thousands)
United States	$	9,506	$	8,811	$	28,820	$	27,191
Germany		1,805		1,419		5,166		4,149
Japan		609		667		1,779		1,955
Other countries		3,380		2,748		10,868		8,639
Net Sales	$	15,300	$	13,645	$	46,633	$	41,934