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Loans, Allowance For Loan Losses And OREO (Impaired Loans) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2018 | Dec. 31, 2017
Financing Receivable, Impaired [Line Items] |  |
Totals: Recorded Investment | $ 6,865 | $ 7,690
Totals: Unpaid Principal Balance | 8,270 | 9,071
Totals: Related Allowance | 383 | 563
Totals: Average Recorded Investment | 7,281 | 8,747
Totals: Interest Income Recognized | 86 | 411
Commercial Mortgages-Owner Occupied [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
With No Related Allowance Recorded: Recorded Investment | 2,340 | 2,427
With No Related Allowance Recorded: Unpaid Principal Balance | 2,434 | 2,539
With No Related Allowance Recorded: Average Recorded Investment | 2,384 | 2,723
With No Related Allowance Recorded: Interest Income Recognized | 30 | 179
With An Allowance Recorded: Recorded Investment | 517 | 665
With An Allowance Recorded: Unpaid Principal Balance | 517 | 665
With An Allowance Recorded: Average Recorded Investment | 591 | 1,126
With An Allowance Recorded: Interest Income Recognized | 8 | 39
Totals: Recorded Investment | 2,857 | 3,092
Totals: Unpaid Principal Balance | 2,951 | 3,204
Totals: Related Allowance | 81 | 93
Totals: Average Recorded Investment | 2,975 | 3,849
Totals: Interest Income Recognized | 38 | 218
Commercial Mortgages-Non-Owner Occupied [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
With No Related Allowance Recorded: Recorded Investment | 427 | 675
With No Related Allowance Recorded: Unpaid Principal Balance | 439 | 690
With No Related Allowance Recorded: Average Recorded Investment | 551 | 512
With No Related Allowance Recorded: Interest Income Recognized | 8 | 30
With An Allowance Recorded: Recorded Investment | 72 | 73
With An Allowance Recorded: Unpaid Principal Balance | 72 | 73
With An Allowance Recorded: Average Recorded Investment | 73 | 74
With An Allowance Recorded: Interest Income Recognized | 1 | 5
Totals: Recorded Investment | 499 | 748
Totals: Unpaid Principal Balance | 511 | 763
Totals: Related Allowance | 18 | 18
Totals: Average Recorded Investment | 624 | 586
Totals: Interest Income Recognized | 9 | 35
Commercial Construction [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
With An Allowance Recorded: Recorded Investment | 90 | 169
With An Allowance Recorded: Unpaid Principal Balance | 703 | 695
With An Allowance Recorded: Average Recorded Investment | 130 | 169
Totals: Recorded Investment | 90 | 169
Totals: Unpaid Principal Balance | 703 | 695
Totals: Related Allowance | 1 | 79
Totals: Average Recorded Investment | 130 | 169
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 | 2
With An Allowance Recorded: Unpaid Principal Balance | 2 | 2
With An Allowance Recorded: Average Recorded Investment | 2 | 1
Totals: Recorded Investment | 2 | 2
Totals: Unpaid Principal Balance | 2 | 2
Totals: Related Allowance | 2 | 2
Totals: Average Recorded Investment | 2 | 1
Consumer Secured [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
With No Related Allowance Recorded: Recorded Investment | 398 | 279
With No Related Allowance Recorded: Unpaid Principal Balance | 494 | 283
With No Related Allowance Recorded: Average Recorded Investment | 339 | 149
With No Related Allowance Recorded: Interest Income Recognized | 6 | 11
With An Allowance Recorded: Recorded Investment | 157 | 427
With An Allowance Recorded: Unpaid Principal Balance | 233 | 445
With An Allowance Recorded: Average Recorded Investment | 292 | 269
With An Allowance Recorded: Interest Income Recognized | 2 | 11
Totals: Recorded Investment | 555 | 706
Totals: Unpaid Principal Balance | 727 | 728
Totals: Related Allowance | 112 | 255
Totals: Average Recorded Investment | 631 | 418
Totals: Interest Income Recognized | 8 | 22
Residential Mortgages [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
With No Related Allowance Recorded: Recorded Investment | 1,459 | 1,580
With No Related Allowance Recorded: Unpaid Principal Balance | 1,538 | 1,673
With No Related Allowance Recorded: Average Recorded Investment | 1,520 | 1,568
With No Related Allowance Recorded: Interest Income Recognized | 19 | 63
With An Allowance Recorded: Recorded Investment | 197 | 151
With An Allowance Recorded: Unpaid Principal Balance | 204 | 178
With An Allowance Recorded: Average Recorded Investment | 174 | 425
With An Allowance Recorded: Interest Income Recognized |  | 3
Totals: Recorded Investment | 1,656 | 1,731
Totals: Unpaid Principal Balance | 1,742 | 1,851
Totals: Related Allowance | 35 | 4
Totals: Average Recorded Investment | 1,694 | 1,993
Totals: Interest Income Recognized | 19 | 66
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 |  |
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 |  |
Totals: Interest Income Recognized |  |
Commercial [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
With No Related Allowance Recorded: Recorded Investment | 768 | 925
With No Related Allowance Recorded: Unpaid Principal Balance | 788 | 1,505
With No Related Allowance Recorded: Average Recorded Investment | 847 | 812
With No Related Allowance Recorded: Interest Income Recognized | 8 | 54
With An Allowance Recorded: Recorded Investment | 438 | 317
With An Allowance Recorded: Unpaid Principal Balance | 846 | 323
With An Allowance Recorded: Average Recorded Investment | 378 | 919
With An Allowance Recorded: Interest Income Recognized | 4 | 16
Totals: Recorded Investment | 1,206 | 1,242
Totals: Unpaid Principal Balance | 1,634 | 1,828
Totals: Related Allowance | 134 | 112
Totals: Average Recorded Investment | 1,225 | 1,731
Totals: Interest Income Recognized | $ 12 | $ 70

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