Geographic Information (Geographical Distribution Of Net Sales) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 69,739	$ 68,303	$ 52,961
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	50,899	49,978	36,902
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	6,634	6,834	5,714
Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	10,901	9,641	7,123
All Other Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 1,305	$ 1,850	$ 3,222