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Derivative Financial Instruments (Narrative) (Details) - USD ($)
$ in Thousands
Jun. 30, 2015
Dec. 31, 2014
Derivative [Line Items]    
Cash pledged as collateral $ 3,000 $ 5,300
Back-to-back Loan Swaps    
Derivative [Line Items]    
Derivative, notional amount 16,200  
Back-to-back Loan Swaps | Other Assets    
Derivative [Line Items]    
Derivative assets, fair value 193  
Back-to-back Loan Swaps | Other Liabilities    
Derivative [Line Items]    
Derivative liabilities, fair value $ 193  
Fair Value Hedge | Interest Rate Swap    
Derivative [Line Items]    
Derivative, fixed interest rate 3.40%  
Derivative, basis spread on LIBOR 0.88%  
Derivative, notional amount $ 13,800  
Cash pledged as collateral 414  
Derivative liabilities, fair value $ 3