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Loans And Allowance For Loan Losses (Age Analysis Of Past Due Financing Receivables) (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  | $ 5,103 | $ 5,496
Current |  | 490,671 | 464,573
Total loans | [1] | 495,774 | 470,069
Recorded Investment > 90 Days & Accruing |  |  |
Commercial Mortgages-Owner Occupied [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  | 1,145 | 2,063
Current |  | 92,504 | 88,698
Total loans |  | 93,649 | 90,761
Recorded Investment > 90 Days & Accruing |  |  |
Commercial Mortgages-Non-Owner Occupied [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  | 660 | 140
Current |  | 138,101 | 134,262
Total loans |  | 138,761 | 134,402
Recorded Investment > 90 Days & Accruing |  |  |
Commercial Construction [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  | 169 | 256
Current |  | 19,228 | 12,219
Total loans |  | 19,397 | 12,475
Recorded Investment > 90 Days & Accruing |  |  |
Consumer Unsecured [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  | 3 | 9
Current |  | 6,977 | 8,558
Total loans |  | 6,980 | 8,567
Recorded Investment > 90 Days & Accruing |  |  |
Consumer Secured [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  | 846 | 832
Current |  | 75,920 | 75,700
Total loans |  | 76,766 | 76,532
Recorded Investment > 90 Days & Accruing |  |  |
Residential Mortgages [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  | 1,652 | 1,763
Current |  | 51,545 | 49,525
Total loans |  | 53,197 | 51,288
Recorded Investment > 90 Days & Accruing |  |  |
Residential Consumer Construction [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  | 58 | 67
Current |  | 10,839 | 7,892
Total loans |  | 10,897 | 7,959
Recorded Investment > 90 Days & Accruing |  |  |
30 to 59 Days Past Due [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  | 2,178 | 2,638
30 to 59 Days Past Due [Member] | Commercial Mortgages-Owner Occupied [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  | 904 | 1,136
30 to 59 Days Past Due [Member] | Commercial Mortgages-Non-Owner Occupied [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  |  | 140
30 to 59 Days Past Due [Member] | Commercial Construction [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  |  |
30 to 59 Days Past Due [Member] | Consumer Unsecured [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  | 3 | 9
30 to 59 Days Past Due [Member] | Consumer Secured [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  | 245 | 531
30 to 59 Days Past Due [Member] | Residential Mortgages [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  | 706 | 539
30 to 59 Days Past Due [Member] | Residential Consumer Construction [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  |  |
60 to 89 Days Past Due [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  | 978 | 539
60 to 89 Days Past Due [Member] | Commercial Mortgages-Owner Occupied [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  | 64 | 72
60 to 89 Days Past Due [Member] | Commercial Mortgages-Non-Owner Occupied [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  | 361 |
60 to 89 Days Past Due [Member] | Commercial Construction [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  |  |
60 to 89 Days Past Due [Member] | Consumer Unsecured [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  |  |
60 to 89 Days Past Due [Member] | Consumer Secured [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  | 139 | 301
60 to 89 Days Past Due [Member] | Residential Mortgages [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  | 414 | 161
60 to 89 Days Past Due [Member] | Residential Consumer Construction [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  |  |
Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  | 1,947 | 2,319
Greater than 90 Days Past Due [Member] | Commercial Mortgages-Owner Occupied [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  | 177 | 855
Greater than 90 Days Past Due [Member] | Commercial Mortgages-Non-Owner Occupied [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  | 299 |
Greater than 90 Days Past Due [Member] | Commercial Construction [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  | 169 | 256
Greater than 90 Days Past Due [Member] | Consumer Unsecured [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  |  |
Greater than 90 Days Past Due [Member] | Consumer Secured [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  | 462 |
Greater than 90 Days Past Due [Member] | Residential Mortgages [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  | 532 | 1,063
Greater than 90 Days Past Due [Member] | Residential Consumer Construction [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  | 58 | 67
Commercial [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  | 570 | 366
Current |  | 95,557 | 87,719
Total loans |  | 96,127 | 88,085
Recorded Investment > 90 Days & Accruing |  |  |
Commercial [Member] | 30 to 59 Days Past Due [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  | 320 | 283
Commercial [Member] | 60 to 89 Days Past Due [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  |  | 5
Commercial [Member] | Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due |  | 250 | 78
Commercial Real Estate [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total loans |  | 251,807 | 237,638
Residential Real Estate [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total loans |  | 64,094 | 59,247
Consumer [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total loans |  | $ 83,746 | $ 85,099
[1] | Includes net deferred costs and premiums of $940 and $182, respectively.

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