Geographic Information (Geographical Distribution Of Net Sales) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated	$ 12,330	$ 13,828	$ 37,935	$ 44,124
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
United States	8,451	8,288	25,381	30,039
Germany [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign country	595	364	1,123	1,351
China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign country	711	714	2,908	2,050
Switzerland [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign country	213	292	1,001	837
Singapore [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign country	188	1,662	312	2,694
France [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign country	488	344	1,289	1,081
Japan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign country	417	304	1,198	962
United Kingdom [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign country	268	589	1,018	1,631
Turkey [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign country	49		226	197
Hong Kong [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign country	145	146	431	401
Vietnam [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign country	253	308	887	871
All Other Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign country	$ 552	$ 817	$ 2,161	$ 2,010