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Business Segments (Schedule Of Segment Reporting Information, By Segment) (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Dec. 31, 2018
Segment Reporting Information [Line Items] |  |  |
Net interest income | $ 6,130,000 | $ 5,331,000 |
Provision for loan losses | 210,000 | 22,000 | $ 716,000
Net interest income after provision for loan losses | 5,920,000 | 5,309,000 |
Noninterest income | 1,219,000 | 1,186,000 |
Noninterest expenses | 5,599,000 | 5,097,000 |
Income before income taxes | 1,540,000 | 1,398,000 |
Income tax expense | 306,000 | 275,000 |
Net Income | 1,234,000 | 1,123,000 |
Total assets | 684,388,000 | 653,635,000 | $ 674,897,000
Community Banking [Member] | Operating Segments [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net interest income | 6,130,000 | 5,331,000 |
Provision for loan losses | 210,000 | 22,000 |
Net interest income after provision for loan losses | 5,920,000 | 5,309,000 |
Noninterest income | 528,000 | 566,000 |
Noninterest expenses | 5,025,000 | 4,604,000 |
Income before income taxes | 1,423,000 | 1,271,000 |
Income tax expense | 281,000 | 248,000 |
Net Income | 1,142,000 | 1,023,000 |
Total assets | 681,531,000 | 650,068,000 |
Mortgage [Member] | Operating Segments [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Noninterest income | 691,000 | 620,000 |
Noninterest expenses | 574,000 | 493,000 |
Income before income taxes | 117,000 | 127,000 |
Income tax expense | 25,000 | 27,000 |
Net Income | 92,000 | 100,000 |
Total assets | $ 2,857,000 | $ 3,567,000 |

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