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Securities (Narrative) (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2018
USD ($)
security
Dec. 31, 2017
USD ($)
security
Dec. 31, 2016
USD ($)
Available-for-sale Securities [Abstract]      
Sales of securities available for sale $ 5,374 $ 20,283 $ 11,356
Available-for-sale Securities, Gross Realized Gain (Loss) 62 94 108
Available-for-sale Securities, Gross Realized Losses $ 45 $ 104 $ 10
Debt securities included in gross unrealized losses on available for sale securities | security 95 54  
Carrying value of securities pledged as collateral $ 2,900