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Derivative Instruments (Narrative) (Details) - USD ($)
$ in Thousands
Jun. 30, 2015
Dec. 31, 2014
Derivative [Line Items]    
Notional amount $ 3,735 $ 3,811
Derivative assets 285 318
Collateral Already Posted, Aggregate Fair Value 810  
Interest Rate Swap [Member]    
Derivative [Line Items]    
Notional amount 3,735 3,811
Interest Rate Lock Commitments [Member]    
Derivative [Line Items]    
Notional amount 2,388 2,964
Derivative assets $ 22 $ 25