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Fair Value (Details 1) (Fair value on a nonrecurring [Member], USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Dec. 31, 2011
Impaired loans [Member]
    
Summary of financial assets and financial liabilities measured at fair value on a recurring basis    
Total Fair value $ 6,900 $ 12,022
OREO [Member]
    
Summary of financial assets and financial liabilities measured at fair value on a recurring basis    
Total Fair value 5,728 5,914
Goodwill insurance agencies [Member]
    
Summary of financial assets and financial liabilities measured at fair value on a recurring basis    
Total Fair value   9,405
Level 1 [Member] | Impaired loans [Member]
    
Summary of financial assets and financial liabilities measured at fair value on a recurring basis    
Total Fair value      
Level 1 [Member] | OREO [Member]
    
Summary of financial assets and financial liabilities measured at fair value on a recurring basis    
Total Fair value      
Level 1 [Member] | Goodwill insurance agencies [Member]
    
Summary of financial assets and financial liabilities measured at fair value on a recurring basis    
Total Fair value     
Level 2 [Member] | Impaired loans [Member]
    
Summary of financial assets and financial liabilities measured at fair value on a recurring basis    
Total Fair value      
Level 2 [Member] | OREO [Member]
    
Summary of financial assets and financial liabilities measured at fair value on a recurring basis    
Total Fair value      
Level 2 [Member] | Goodwill insurance agencies [Member]
    
Summary of financial assets and financial liabilities measured at fair value on a recurring basis    
Total Fair value     
Level 3 [Member] | Impaired loans [Member]
    
Summary of financial assets and financial liabilities measured at fair value on a recurring basis    
Total Fair value 6,900 12,022
Level 3 [Member] | OREO [Member]
    
Summary of financial assets and financial liabilities measured at fair value on a recurring basis    
Total Fair value 5,728 5,914
Level 3 [Member] | Goodwill insurance agencies [Member]
    
Summary of financial assets and financial liabilities measured at fair value on a recurring basis    
Total Fair value   $ 9,405