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Accumulated Other Comprehensive Income (Reclassification Out Of Accumulated Other Comprehensive Income) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Sales $ 38,855 $ 31,915 $ 89,855 $ 78,334
Income tax (benefit) expense (745) (860) (968) 839
Amount reclassified net of tax     317  
Reclassification Out Of Accumulated Other Comprehensive Income [Member]
       
Sales 324   495  
Income tax (benefit) expense 117   178  
Amount reclassified net of tax $ 207   $ 317