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Borrowed Funds (Narrative) (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2016
Dec. 31, 2015
Short-term Debt [Line Items]    
Carrying value of securities sold under agreements to repurchase $ 58,137 $ 70,555
Fair value of securities sold under agreements to repurchase 58,137 $ 70,555
Additional borrowing capacity $ 106,677  
Federal Funds Purchased [Member] | Minimum [Member]    
Short-term Debt [Line Items]    
Debt instrument, term 1 day  
Federal Funds Purchased [Member] | Maximum [Member]    
Short-term Debt [Line Items]    
Debt instrument, term 4 days  
Federal Reserve Bank Advances [Member] | Minimum [Member]    
Short-term Debt [Line Items]    
Debt instrument, term 1 day  
Federal Reserve Bank Advances [Member] | Maximum [Member]    
Short-term Debt [Line Items]    
Debt instrument, term 4 days