Geographic Information (Geographical Distribution Of Net Sales) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 17,310	$ 14,126
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	12,822	8,981
Germany [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	591	295
Japan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	322	382
China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	699	1,328
Singapore [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	111	119
Switzerland [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	332	433
Vietnam [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	364	394
UK [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	523	608
Hong Kong [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	178	203
Turkey [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	193	111
France [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	534	412
All Other Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 641	$ 860