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Investment Securities (Investments Classified by Contractual Maturity Date) (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Mar. 31, 2012
Schedule of Investments [Line Items]      
Available for sale Securities, Amortized Cost, Due after 1 year but within 5 years $ 21,553    
Available for sale Securities, Amortized Cost, Due after 5 years but within 10 years 25,715    
Available for sale Securities, Amortized Cost, Due after 10 years 36,465    
Avaiable for Sale Securities with Specified Matuirty Date, Amortized Cost 83,733    
Equity Securities, Amortized Cost 400    
Available-for-sale Securities, Amortized Cost Basis 142,435   150,610
Available for sale Securities, Fair Value, Due after 1 year but within 5 years 23,145    
Available for sale Securities, Fair Value, Due after 5 years but within 10 years 26,673    
Available for sale Securities, Fair Value, Due after 10 years 37,015    
Avaiable for Sale Securities with Specified Matuirty Date, Fair Value 86,833    
Equity Securities, Fair Value 387    
Available for sale Securities, Fair Value 145,506 154,295 154,295
Mortgage-backed securities [Member]
     
Schedule of Investments [Line Items]      
Available for sale Securities without a Single Maturity Date, Amortized Cost 58,302    
Available for sale securities without a Single Maturity Date, Fair Value $ 58,286