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Balance Sheet Information (Details 5) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Dec. 31, 2012
Accumulated Other Comprehensive Income    
Gross $ 4,418 $ 5,831
Taxes 154 142
Net 4,572 5,973
Translation adjustment
   
Accumulated Other Comprehensive Income    
Gross 5,694 7,040
Taxes (352) (339)
Net 5,342 6,701
Minimum pension liability
   
Accumulated Other Comprehensive Income    
Gross (1,285) (1,285)
Taxes 510 510
Net (775) (775)
Unrealized gain on available for sale securities
   
Accumulated Other Comprehensive Income    
Gross 9 76
Taxes (4) (29)
Net $ 5 $ 47