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Securities (Realized Gains and Losses) (Narrative) (Details)
3 Months Ended 12 Months Ended
Mar. 31, 2016
USD ($)
security
Mar. 31, 2015
USD ($)
Dec. 31, 2015
USD ($)
Schedule of Investments [Line Items]      
Available-for-sale Securities, Gross Realized Gains $ 94,000 $ 0  
Available-for-sale Securities, impairment on securities     $ 0
Available-for-sale Securities, Gross Realized Gain (Loss) 94,000    
Available-for-sale Securities Pledged as Collateral 19,200,000   $ 18,500,000
Equity Securities [Member]      
Schedule of Investments [Line Items]      
Available-for-sale Securities, book value 40,000    
Available-for-sale Securities, Gross Realized Gain (Loss) $ 63,000    
Number of securities sold | security 1    
Municipal Securities [Member]      
Schedule of Investments [Line Items]      
Available-for-sale Securities, book value $ 2,400,000    
Available-for-sale Securities, Gross Realized Gain (Loss) $ 31,000    
Number of securities sold | security 3