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Business Segments (Schedule Of Segment Reporting Information, By Segment) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Segment Reporting Information [Line Items]    
Net interest income $ 20,672 $ 19,224
Provision for loan losses 993 1,612
Net interest income after provision for loan losses 19,679 17,612
Noninterest income 4,727 4,795
Noninterest expenses 19,046 17,594
Income before income taxes 5,360 4,813
Income tax expense 2,438 1,527
Net Income 2,922 3,286
Total assets 626,341 574,195
Community Banking [Member]    
Segment Reporting Information [Line Items]    
Net interest income 20,672 19,224
Provision for loan losses 993 1,612
Net interest income after provision for loan losses 19,679 17,612
Noninterest income 2,293 2,338
Noninterest expenses 17,127 15,695
Income before income taxes 4,845 4,255
Income tax expense 2,263 1,337
Net Income 2,582 2,918
Total assets 623,547 570,181
Mortgage [Member]    
Segment Reporting Information [Line Items]    
Noninterest income 2,434 2,457
Noninterest expenses 1,919 1,899
Income before income taxes 515 558
Income tax expense 175 190
Net Income 340 368
Total assets $ 2,794 $ 4,014