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Borrowed Funds (Contractual Maturities of All Long Term Borrowings) (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Debt Instrument [Line Items]    
Due in 2015 $ 0 $ 35,000
Due in 2016 0 0
Due in 2017 0 0
Due in 2018 20,000 70,000
Due in 2019 0 0
Due in 2020 30,000 0
Thereafter 97,537 77,606
Total long-term debt 147,537 $ 182,606
Fixed Rate [Member]    
Debt Instrument [Line Items]    
Due in 2015 0  
Due in 2016 0  
Due in 2017 0  
Due in 2018 20,000  
Due in 2019 0  
Due in 2020 30,000  
Thereafter 66,608  
Total long-term debt 116,608  
Floating Rate [Member]    
Debt Instrument [Line Items]    
Due in 2015 0  
Due in 2016 0  
Due in 2017 0  
Due in 2018 0  
Due in 2019 0  
Due in 2020 0  
Thereafter 30,929  
Total long-term debt $ 30,929