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Securities (Amortized Costs and Fair Values of Securities Available for Sale) (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost $ 163,181 $ 146,318
Gross Unrealized Gains 2,187 568
Gross Unrealized (Losses) (365) (2,588)
Securities available for sale 165,003 144,298
Obligations of U.S. government corporations and agencies [Member]    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 21,917 22,183
Gross Unrealized Gains 363 29
Gross Unrealized (Losses) (94) (481)
Securities available for sale 22,186 21,731
Mortgage-backed securities [Member]    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 107,410 77,976
Gross Unrealized Gains 966 145
Gross Unrealized (Losses) (215) (1,638)
Securities available for sale 108,161 76,483
Obligations of states and political subdivisions [Member]    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 33,854 46,159
Gross Unrealized Gains 858 394
Gross Unrealized (Losses) (56) (469)
Securities available for sale $ 34,656 $ 46,084