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Securities (Narrative Disclosures) (Details)
 9 Months Ended
Sep. 30, 2016
USD ($)
securities
Sep. 30, 2015
USD ($)
Dec. 31, 2015
USD ($)
Investments, Debt and Equity Securities [Abstract]      
Marketable Securities, Realized Gain (Loss) | $ $ 7,000    
Number of available-for-sale securities sold | securities 3    
Proceeds from sale of available-for-sale securities | $   $ 0  
Available-for-sale securities pledged as collateral | $ $ 20,200,000   $ 23,000,000
Number of available-for-sales securities in an unrealized loss position | securities 48    
Number of available-for-sale securities in an unrealized loss position, twelve months or greater | securities 8    
Other than temporary impairment on available-for-sale securities recorded on the income statement | $ $ 0 0  
Number of held-to-maturity securities in an unrealized loss position | securities 1    
Number of held-to-maturity Securities in an unrealized loss position, twelve months or greater | securities 0    
Other than temporary impairment on held-to-maturity securities recorded on the income statement | $ $ 0 $ 0