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Loans And Allowance For Loan Losses (Impaired Loans) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2019 | Dec. 31, 2018
Financing Receivable, Impaired [Line Items] |  |
Totals: Recorded Investment | $ 7,318 | $ 6,580
Totals: Unpaid Principal Balance | 8,127 | 7,355
Totals: Related Allowance | 166 | 238
Totals: Average Recorded Investment | 6,950 | 7,138
Totals: Interest Income Recognized | 96 | 324
Commercial Mortgages-Owner Occupied [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
With No Related Allowance Recorded: Recorded Investment | 2,514 | 2,414
With No Related Allowance Recorded: Unpaid Principal Balance | 2,613 | 2,511
With No Related Allowance Recorded: Average Recorded Investment | 2,464 | 2,421
With No Related Allowance Recorded: Interest Income Recognized | 44 | 167
With An Allowance Recorded: Recorded Investment | 33 | 39
With An Allowance Recorded: Unpaid Principal Balance | 124 | 132
With An Allowance Recorded: Average Recorded Investment | 36 | 352
With An Allowance Recorded: Interest Income Recognized | 2 | 3
Totals: Recorded Investment | 2,547 | 2,453
Totals: Unpaid Principal Balance | 2,737 | 2,643
Totals: Related Allowance | 27 | 36
Totals: Average Recorded Investment | 2,500 | 2,773
Totals: Interest Income Recognized | 46 | 170
Commercial Mortgages-Non-Owner Occupied [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
With No Related Allowance Recorded: Recorded Investment | 629 | 131
With No Related Allowance Recorded: Unpaid Principal Balance | 645 | 132
With No Related Allowance Recorded: Average Recorded Investment | 380 | 403
With No Related Allowance Recorded: Interest Income Recognized | 7 | 8
With An Allowance Recorded: Recorded Investment | 17 | 90
With An Allowance Recorded: Unpaid Principal Balance | 17 | 90
With An Allowance Recorded: Average Recorded Investment | 54 | 82
With An Allowance Recorded: Interest Income Recognized |  | 6
Totals: Recorded Investment | 646 | 221
Totals: Unpaid Principal Balance | 662 | 222
Totals: Related Allowance | 12 | 20
Totals: Average Recorded Investment | 434 | 485
Totals: Interest Income Recognized | 7 | 14
Commercial Construction [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
With An Allowance Recorded: Average Recorded Investment |  | 85
Totals: Average Recorded Investment |  | 85
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 |  | 1
With An Allowance Recorded: Unpaid Principal Balance |  | 1
With An Allowance Recorded: Average Recorded Investment | 1 | 2
Totals: Recorded Investment |  | 1
Totals: Unpaid Principal Balance |  | 1
Totals: Related Allowance |  | 1
Totals: Average Recorded Investment | 1 | 2
Consumer Secured [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
With No Related Allowance Recorded: Recorded Investment | 86 | 88
With No Related Allowance Recorded: Unpaid Principal Balance | 86 | 88
With No Related Allowance Recorded: Average Recorded Investment | 87 | 184
With No Related Allowance Recorded: Interest Income Recognized | 1 | 6
With An Allowance Recorded: Recorded Investment | 197 | 105
With An Allowance Recorded: Unpaid Principal Balance | 205 | 105
With An Allowance Recorded: Average Recorded Investment | 151 | 266
With An Allowance Recorded: Interest Income Recognized |  | 7
Totals: Recorded Investment | 283 | 193
Totals: Unpaid Principal Balance | 291 | 193
Totals: Related Allowance | 39 | 105
Totals: Average Recorded Investment | 238 | 450
Totals: Interest Income Recognized | 1 | 13
Residential Mortgages [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
With No Related Allowance Recorded: Recorded Investment | 2,066 | 1,876
With No Related Allowance Recorded: Unpaid Principal Balance | 2,134 | 1,953
With No Related Allowance Recorded: Average Recorded Investment | 1,971 | 1,728
With No Related Allowance Recorded: Interest Income Recognized | 26 | 89
With An Allowance Recorded: Recorded Investment | 305 | 375
With An Allowance Recorded: Unpaid Principal Balance | 317 | 390
With An Allowance Recorded: Average Recorded Investment | 340 | 263
With An Allowance Recorded: Interest Income Recognized | 4 | 11
Totals: Recorded Investment | 2,371 | 2,251
Totals: Unpaid Principal Balance | 2,451 | 2,343
Totals: Related Allowance | 51 | 61
Totals: Average Recorded Investment | 2,311 | 1,991
Totals: Interest Income Recognized | 30 | 100
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 | 1,418 | 1,430
With No Related Allowance Recorded: Unpaid Principal Balance | 1,933 | 1,922
With No Related Allowance Recorded: Average Recorded Investment | 1,424 | 1,178
With No Related Allowance Recorded: Interest Income Recognized | 11 | 24
With An Allowance Recorded: Recorded Investment | 53 | 31
With An Allowance Recorded: Unpaid Principal Balance | 53 | 31
With An Allowance Recorded: Average Recorded Investment | 42 | 174
With An Allowance Recorded: Interest Income Recognized | 1 | 3
Totals: Recorded Investment | 1,471 | 1,461
Totals: Unpaid Principal Balance | 1,986 | 1,953
Totals: Related Allowance | 37 | 15
Totals: Average Recorded Investment | 1,466 | 1,352
Totals: Interest Income Recognized | $ 12 | $ 27

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