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Sales (Sales By Geographic Region) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Revenues from External Customers and Long-Lived Assets [Line Items]      
Sales attributable based on geographic location $ 48,729 [1] $ 39,633 [1] $ 30,399 [1]
North America [Member]
     
Revenues from External Customers and Long-Lived Assets [Line Items]      
Sales attributable based on geographic location 33,606 29,627 22,071
Europe [Member]
     
Revenues from External Customers and Long-Lived Assets [Line Items]      
Sales attributable based on geographic location 7,277 5,174 4,174
Rest Of The World [Member]
     
Revenues from External Customers and Long-Lived Assets [Line Items]      
Sales attributable based on geographic location $ 7,846 $ 4,832 $ 4,154
[1] Including sales to related parties in the amount of US$ 302 thousand, US$ 350 thousand and US$ 558 thousand in 2010, 2011 and 2012, respectively.