Segment and Enterprise-Wide Disclosures (Tables)

9 Months Ended

Sep. 30, 2012

Segment and Enterprise-Wide Disclosures [Abstract]

Net sales to unaffiliated customers by geography

Net sales to unaffiliated customers by country were as follows:

	Three months ended September 30,				Nine months ended September 30,
	2012		2011		2012		2011
	(in thousands)
United States	$	8,811	$	9,207	$	27,191	$	26,818
Germany		1,419		1,752		4,149		5,920
Other countries		3,415		3,605		10,594		11,536
Total	$	13,645	$	14,564	$	41,934	$	44,274