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Securities (Schedule of Amortized Cost Gross Unrealized Gains and Losses, and Fair Values of Securities) (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Schedule of Investments [Line Items]    
Available for Sale, Gross Unrealized Gains  
Available for Sale, Fair Value $ 210,205 243,277
Fixed income [Member]    
Schedule of Investments [Line Items]    
Available for Sale, Amortized Cost 209,758 250,311
Available for Sale, Gross Unrealized Gains 1,534 410
Available for Sale, Gross Unrealized Losses (1,087) (7,444)
Available for Sale, Fair Value 210,205 243,277
State and municipal [Member]    
Schedule of Investments [Line Items]    
Available for Sale, Amortized Cost 70,015 99,218
Available for Sale, Gross Unrealized Gains 1,293 385
Available for Sale, Gross Unrealized Losses (3) (1,990)
Available for Sale, Fair Value 71,305 97,613
Corporate Obligations [Member]    
Schedule of Investments [Line Items]    
Available for Sale, Amortized Cost 4,097 8,896
Available for Sale, Gross Unrealized Gains 3
Available for Sale, Gross Unrealized Losses   (256)
Available for Sale, Fair Value 4,100 8,640
Mortgage-backed Securities-Government Sponsored Entities [Member]    
Schedule of Investments [Line Items]    
Available for Sale, Amortized Cost 135,646 142,197
Available for Sale, Gross Unrealized Gains 238 25
Available for Sale, Gross Unrealized Losses (1,084) (5,198)
Available for Sale, Fair Value $ 134,800 $ 137,024