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Investment Securities (Amortized Cost and Fair Values Classified by Contractual Maturity Date) (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Schedule of Investments [Line Items]    
Amortized Cost: Due in one year or less $ 0  
Amortized Cost: Due after one year through five years 37,577  
Amortized Cost: Due after five years through ten years 16,147  
Amortized Cost: Due after ten years 52,070  
Amortized Cost, Single Maturity Date, Total 105,794  
Fair Value: Due in one year or less 0  
Fair Value: Due after one year through five years 37,593  
Fair Value: Due after five years through ten years 16,676  
Fair Value: Due after ten years 48,547  
Fair Value: Single Maturity Date, Total 102,816  
Available for sale debt maturities fair value sub total 170,232  
Available For Sale Debt Maturities Amortized Cost Total 173,549  
Available-for-sale Securities 170,232 $ 221,117
Amortized Cost: Due after five years through ten years, Held to maturity 15,604  
Amortized Cost: Due after ten years, Held to maturity 11,725  
Amortized Cost: Total, Held to maturity 27,329  
Fair Value: Due after five years through ten years, Held to maturity 16,116  
Fair Value: Due after ten years, Held to maturity 12,185  
Fair Value: Total, Held to maturity 28,301  
Held-to-maturity Securities 105,560 109,449
Held-to-maturity Securities, Fair Value 106,742 110,771
Residential mortgage-backed agencies [Member]    
Schedule of Investments [Line Items]    
Amortized Cost: without Single Maturity Date 14,285  
Fair Value: without Single Maturity Date 14,170  
Available-for-sale Securities 14,170 45,273
Held-to-maturity Securities 53,734  
Held-to-maturity Securities, Fair Value 53,912  
Commercial mortgage-backed agencies [Member]    
Schedule of Investments [Line Items]    
Amortized Cost: without Single Maturity Date 43,780  
Fair Value: without Single Maturity Date 43,636  
Available-for-sale Securities 43,636 25,957
Held-to-maturity Securities 18,078  
Held-to-maturity Securities, Fair Value 18,232  
Collateralized mortgage obligations [Member]    
Schedule of Investments [Line Items]    
Amortized Cost: without Single Maturity Date 9,690  
Fair Value: without Single Maturity Date 9,610  
Available-for-sale Securities 9,610 $ 8,707
Held-to-maturity Securities 6,419  
Held-to-maturity Securities, Fair Value $ 6,297