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Securities (Narrative Disclosures) (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2018
USD ($)
securities
Dec. 31, 2017
USD ($)
Investments, Debt and Equity Securities [Abstract]    
Available-for-sale Securities, Restricted | $ $ 11,500 $ 2,800
Available-for-sale securities in unrealized loss positions 135  
Available-for-sale securities in an unrealized loss position, twelve months or greater 128  
Other than temporary impairment on available-for-sale securities | $ $ 0 0
Held-to-maturity securities in unrealized loss positions 63  
Held-to-maturity securities in an unrealized loss position, twelve months or greater 37  
Other than temporary impairment on held-to-maturity securities | $ $ 0 $ 0