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Securities (Amortized Costs And Fair Values Of Securities Available For Sale) (Details) - USD ($)
$ in Thousands
Sep. 30, 2017
Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost $ 123,395 $ 119,356
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax 1,717 1,233
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax (534) (1,327)
Securities available for sale, at fair value 124,578 119,262
Obligations Of U.S. Government Corporations And Agencies [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost 31,384 30,404
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax 398 316
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax (175) (279)
Securities available for sale, at fair value 31,607 30,441
Mortgage-Backed Securities [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost 44,674 42,681
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax 233 147
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax (217) (456)
Securities available for sale, at fair value 44,690 42,372
Obligations Of States And Political Subdivisions [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost 47,337 46,271
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax 1,086 770
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax (142) (592)
Securities available for sale, at fair value $ 48,281 $ 46,449