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Investment Securities (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Dec. 31, 2013
Investment [Line Items]      
Gross investment gains $ 62 $ 71  
Gross investment losses 5    
Investment Securities:      
Consolidated investment securities portfolio modified, years 3 years 2 months 23 days    
Proceeds from sales of investment securities - available for sale 2,753 1,218  
Book value of securities available for sale and held to maturity $ 113,957   $ 110,780
Positions considered temporarily impaired 50    
Standard & Poor's, AAA Rating [Member]
     
Investment [Line Items]      
Portfolio rated 88.40%   89.00%
Standard & Poor's, A Rating [Member]
     
Investment [Line Items]      
Portfolio rated 2.00%