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Loans And Allowance For Loan Losses (Impaired Loans) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Financing Receivable, Impaired [Line Items] |  |
Totals: Recorded Investment | $ 7,690 | $ 9,799
Totals: Unpaid Principal Balance | 9,071 | 10,545
Totals: Related Allowance | 563 | 1,771
Totals: Average Recorded Investment | 8,747 | 9,610
Totals: Interest Income Recognized | 411 | 464
Commercial Mortgages-Owner Occupied [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
With No Related Allowance Recorded: Recorded Investment | 2,427 | 3,019
With No Related Allowance Recorded: Unpaid Principal Balance | 2,539 | 3,077
With No Related Allowance Recorded: Average Recorded Investment | 2,723 | 3,051
With No Related Allowance Recorded: Interest Income Recognized | 179 | 142
With An Allowance Recorded: Recorded Investment | 665 | 1,587
With An Allowance Recorded: Unpaid Principal Balance | 665 | 1,618
With An Allowance Recorded: Average Recorded Investment | 1,126 | 1,232
With An Allowance Recorded: Interest Income Recognized | 39 | 81
Totals: Recorded Investment | 3,092 | 4,606
Totals: Unpaid Principal Balance | 3,204 | 4,695
Totals: Related Allowance | 93 | 249
Totals: Average Recorded Investment | 3,849 | 4,283
Totals: Interest Income Recognized | 218 | 223
Commercial Mortgages-Non-Owner Occupied [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
With No Related Allowance Recorded: Recorded Investment | 675 | 349
With No Related Allowance Recorded: Unpaid Principal Balance | 690 | 349
With No Related Allowance Recorded: Average Recorded Investment | 512 | 263
With No Related Allowance Recorded: Interest Income Recognized | 30 | 23
With An Allowance Recorded: Recorded Investment | 73 | 74
With An Allowance Recorded: Unpaid Principal Balance | 73 | 74
With An Allowance Recorded: Average Recorded Investment | 74 | 373
With An Allowance Recorded: Interest Income Recognized | 5 | 6
Totals: Recorded Investment | 748 | 423
Totals: Unpaid Principal Balance | 763 | 423
Totals: Related Allowance | 18 | 20
Totals: Average Recorded Investment | 586 | 636
Totals: Interest Income Recognized | 35 | 29
Commercial Construction [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
With No Related Allowance Recorded: Average Recorded Investment |  | 14
With An Allowance Recorded: Recorded Investment | 169 | 169
With An Allowance Recorded: Unpaid Principal Balance | 695 | 657
With An Allowance Recorded: Average Recorded Investment | 169 | 255
Totals: Recorded Investment | 169 | 169
Totals: Unpaid Principal Balance | 695 | 657
Totals: Related Allowance | 79 | 76
Totals: Average Recorded Investment | 169 | 269
Consumer Unsecured [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
With No Related Allowance Recorded: Recorded Investment |  |
With No Related Allowance Recorded: Unpaid Principal Balance |  |
With No Related Allowance Recorded: Average Recorded Investment |  |
With No Related Allowance Recorded: Interest Income Recognized |  |
With An Allowance Recorded: Recorded Investment | 2 |
With An Allowance Recorded: Unpaid Principal Balance | 2 |
With An Allowance Recorded: Average Recorded Investment | 1 | 16
Totals: Recorded Investment | 2 |
Totals: Unpaid Principal Balance | 2 |
Totals: Related Allowance | 2 |
Totals: Average Recorded Investment | 1 | 16
Consumer Secured [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
With No Related Allowance Recorded: Recorded Investment | 279 | 18
With No Related Allowance Recorded: Unpaid Principal Balance | 283 | 18
With No Related Allowance Recorded: Average Recorded Investment | 149 | 19
With No Related Allowance Recorded: Interest Income Recognized | 11 | 1
With An Allowance Recorded: Recorded Investment | 427 | 110
With An Allowance Recorded: Unpaid Principal Balance | 445 | 110
With An Allowance Recorded: Average Recorded Investment | 269 | 150
With An Allowance Recorded: Interest Income Recognized | 11 | 8
Totals: Recorded Investment | 706 | 128
Totals: Unpaid Principal Balance | 728 | 128
Totals: Related Allowance | 255 | 110
Totals: Average Recorded Investment | 418 | 169
Totals: Interest Income Recognized | 22 | 9
Residential Mortgages [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
With No Related Allowance Recorded: Recorded Investment | 1,580 | 1,555
With No Related Allowance Recorded: Unpaid Principal Balance | 1,673 | 1,687
With No Related Allowance Recorded: Average Recorded Investment | 1,568 | 1,776
With No Related Allowance Recorded: Interest Income Recognized | 63 | 55
With An Allowance Recorded: Recorded Investment | 151 | 699
With An Allowance Recorded: Unpaid Principal Balance | 178 | 736
With An Allowance Recorded: Average Recorded Investment | 425 | 675
With An Allowance Recorded: Interest Income Recognized | 3 | 30
Totals: Recorded Investment | 1,731 | 2,254
Totals: Unpaid Principal Balance | 1,851 | 2,423
Totals: Related Allowance | 4 | 83
Totals: Average Recorded Investment | 1,993 | 2,451
Totals: Interest Income Recognized | 66 | 85
Residential Consumer Construction [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
With No Related Allowance Recorded: Recorded Investment |  |
With No Related Allowance Recorded: Unpaid Principal Balance |  |
With No Related Allowance Recorded: Average Recorded Investment |  | 86
With No Related Allowance Recorded: Interest Income Recognized |  |
With An Allowance Recorded: Recorded Investment |  |
With An Allowance Recorded: Unpaid Principal Balance |  |
With An Allowance Recorded: Average Recorded Investment |  |
With An Allowance Recorded: Interest Income Recognized |  |
Totals: Recorded Investment |  |
Totals: Unpaid Principal Balance |  |
Totals: Related Allowance |  |
Totals: Average Recorded Investment |  | 86
Totals: Interest Income Recognized |  |
Commercial [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
With No Related Allowance Recorded: Recorded Investment | 925 | 698
With No Related Allowance Recorded: Unpaid Principal Balance | 1,505 | 698
With No Related Allowance Recorded: Average Recorded Investment | 812 | 349
With No Related Allowance Recorded: Interest Income Recognized | 54 | 37
With An Allowance Recorded: Recorded Investment | 317 | 1,521
With An Allowance Recorded: Unpaid Principal Balance | 323 | 1,521
With An Allowance Recorded: Average Recorded Investment | 919 | 1,351
With An Allowance Recorded: Interest Income Recognized | 16 | 81
Totals: Recorded Investment | 1,242 | 2,219
Totals: Unpaid Principal Balance | 1,828 | 2,219
Totals: Related Allowance | 112 | 1,233
Totals: Average Recorded Investment | 1,731 | 1,700
Totals: Interest Income Recognized | $ 70 | $ 118

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