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Fair Value Measurement (Table) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Marketable securities $ 4,068 $ 13,381
Derivatives designated as hedging instrument 276 (492)
Pension liability, net (2,247) [1] (2,870) [1]
Total assets (liabilities) 2,097 10,091
Derivatives designated as hedging instrment, tax effect 257 164
Level 1 [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Marketable securities 4,068 13,381
Total assets (liabilities) 4,068 13,381
Level 2 [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivatives designated as hedging instrument 276 (492)
Total assets (liabilities) 276 (492)
Level 3 [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Pension liability, net (2,247) [1] (2,870) [1]
Total assets (liabilities) $ (2,247) $ (2,870)
[1] See also Note 12.