Geographic Information (Geographical Distribution Of Net Sales) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Revenues from External Customers and Long-Lived Assets [Line Items]
United States	$ 9,338	$ 9,981	$ 33,037	$ 28,892
Consolidated	14,904	13,873	47,268	41,584
Germany [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign country	364	416	1,351	1,245
China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign country	714	244	2,050	1,375
Switzerland [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign country	292	192	842	564
Japan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign country	309	447	977	1,193
France [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign country	344	361	1,081	1,177
Singapore [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign country	1,662	188	2,694	552
United Kingdom [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign country	592	363	1,636	823
Vietnam [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign country	308	277	871	812
Hong Kong [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign country	153	337	460	789
All Other Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign country	$ 828	$ 1,067	$ 2,269	$ 3,162