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Derivatives and Financial Instruments (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2015
USD ($)
Sep. 30, 2014
USD ($)
Sep. 30, 2015
USD ($)
Sep. 30, 2014
USD ($)
Mar. 31, 2014
USD ($)
swap
Derivative [Line Items]          
Number of interest rate swaps | swap         2
Derivatives not designated as hedging instruments [Member]          
Derivative [Line Items]          
Gain (loss) recognized in income $ (1) $ (4) $ 13 $ 17  
Mortgage loan rate lock commitments [Member] | Derivatives not designated as hedging instruments [Member]          
Derivative [Line Items]          
Gain (loss) recognized in income 4 (2) 1 1  
Mortgage loan forward sales [Member] | Derivatives not designated as hedging instruments [Member]          
Derivative [Line Items]          
Gain (loss) recognized in income (5) (2) 12 16  
Federal Home Loan Bank Advances [Member] | Interest Rate Swap [Member]          
Derivative [Line Items]          
Notional amount         $ 40,000
Federal Home Loan Bank Advances [Member] | Interest Rate Swap [Member] | Derivatives designated as hedging instruments [Member]          
Derivative [Line Items]          
Gain (loss) recognized in income $ (456) $ 0 $ (515) $ 0  
Federal Home Loan Bank Advances [Member] | Interest Rate Swap 1 [Member]          
Derivative [Line Items]          
Notional amount         20,000
Federal Home Loan Bank Advances [Member] | Interest Rate Swap 2 [Member]          
Derivative [Line Items]          
Notional amount         $ 20,000