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Derivative Financial Instruments (Details) (Not designated as hedges [Member], Continuing operations [Member], USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Derivative [Line Items]    
Gain (loss) recognized in income $ 1 $ 0
Mortgage loan rate lock commitments [Member]
   
Derivative [Line Items]    
Gain (loss) recognized in income (8) 0
Mortgage loan forward sales and MBS [Member]
   
Derivative [Line Items]    
Gain (loss) recognized in income $ 9 $ 0