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Income Taxes (Schedule of Current Taxes Payable and Deferred) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Income Taxes [Abstract]    
Taxes payable $ 3,365 $ 2,431
Deferred income taxes 5,401 6,857
Total current taxes payable and deferred $ 8,766 $ 9,288