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Provision for Income Taxes (Details Textual) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Provision for Income Taxes (Textual) [Abstract]    
Provision for deferred income taxes $ 1,376 $ 2,556
Provision for Income Taxes (Additional Textual) [Abstract]    
U.S. federal statutory income tax rate   35.00%
Litigation settlement gain   7,468
Undistributed Earnings of Foreign Subsidiaries [Member]
   
Provision for Income Taxes (Textual) [Abstract]    
Provision for deferred income taxes   $ 2,100