Borrowed Funds (Short-term borrowings) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Securities sold under agreements to repurchase without stated maturity dates [Member]
   
Summary of short term borrowings    
Maximum Month End Balance $ 106,025 $ 66,117
Quarter to Date Average Balance 74,602 57,466
Weighted Average Interest Rate During the Period 0.15% 0.20%
Federal funds purchased [Member]
   
Summary of short term borrowings    
Maximum Month End Balance 13,700 17,900
Quarter to Date Average Balance $ 4,445 $ 3,836
Weighted Average Interest Rate During the Period 0.61% 0.47%