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Investments (Amortized Cost And Fair Values Classified By Contractual Maturity Date) (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Schedule of Investments [Line Items]    
Amortized Cost: Due in one year or less $ 23,500  
Amortized Cost: Due after one year through five years 30,407  
Amortized Cost: Due after five years through ten years 67,845  
Amortized Cost: Due after ten years 79,387  
Amortized Cost, Single Maturity Date, Total 201,139  
Fair Value: Due in one year or less 23,500  
Fair Value: Due after one year through five years 30,188  
Fair Value: Due after five years through ten years 67,107  
Fair Value: Due after ten years 62,880  
Fair Value: Single Maturity Date, Total 183,675  
Available-for-sale Securities, Amortized Cost Basis 383,748 368,319
Available-for-sale Securities 361,465 336,589
Amortized Cost: Due after ten years 2,860  
Fair Value: Due after ten years 2,444  
Residential mortgage-backed agencies [Member]
    
Schedule of Investments [Line Items]    
Amortized Cost: without Single Maturity Date 113,815  
Fair Value: without Single Maturity Date 110,452  
Available-for-sale Securities, Amortized Cost Basis 113,815 116,933
Available-for-sale Securities 110,452 112,444
Commercial mortgage-backed agencies [Member]
    
Schedule of Investments [Line Items]    
Amortized Cost: without Single Maturity Date 39,296  
Fair Value: without Single Maturity Date 38,338  
Available-for-sale Securities, Amortized Cost Basis 39,296 31,025
Available-for-sale Securities 38,338 29,905
Collateralized mortgage obligations [Member]
    
Schedule of Investments [Line Items]    
Amortized Cost: without Single Maturity Date 29,498  
Fair Value: without Single Maturity Date 29,000  
Available-for-sale Securities, Amortized Cost Basis 29,498 30,468
Available-for-sale Securities $ 29,000 $ 29,390