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Derivative Financial Instruments (Narrative) (Details) (USD $)
 3 Months Ended 3 Months Ended
Mar. 31, 2014
contract
Dec. 31, 2013
Jul. 31, 2009
Interest Rate Swap [Member]
Mar. 31, 2014
Derivative Matured [Member]
Mar. 31, 2014
Swap Contrat- 5 year $10 million [Member]
Mar. 31, 2014
Swap Contract- 7 year $5 Million [Member]
Derivative [Line Items]            
Interest rate swap notional amount $ 15,000,000   $ 20,000,000 $ 5,000,000 $ 10,000,000 $ 5,000,000
Number of interest rate swap contracts 3          
Derivative, Maturity Date       Jun. 15, 2012 Jun. 17, 2014 Jun. 17, 2016
Interest rate swap fair value 365,000 457,000        
Cash collateral 850,000          
Gain on derivative 92,000          
Deferred tax asset on gain on derivative $ 37,000          
Cash flow hedge ineffectiveness 0