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Loans And Leases (Individually Evaluated For Impairment By Class Of Loans) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017 | Dec. 31, 2017
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |  |  |
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance |  | $ 382 |  |  | $ 382 |  |  | $ 391
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance |  | 3,223 |  |  | 3,223 |  |  | 3,439
Impaired Financing Receivable, Unpaid Principal Balance, Total |  | 3,605 |  |  | 3,605 |  |  | 3,830
Impaired Financing Receivable, with No Related Allowance, Recorded Investment |  | 128 |  |  | 128 |  |  | 137
Impaired Financing Receivable, with Related Allowance, Recorded Investment |  | 3,223 |  |  | 3,223 |  |  | 3,439
Impaired Financing Receivable, Recorded Investment, Total |  | 3,351 |  |  | 3,351 |  |  | 3,576
Impaired Financing Receivable, ALL Allocated |  | 24 |  |  | 24 |  |  | 26
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment |  | 129 |  | $ 140 | 132 |  | $ 144 |
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment |  | 3,296 |  | 4,450 | 3,342 |  | 4,598 |
Impaired Financing Receivable, Average Recorded Investment, Total |  | 3,425 |  | 4,590 | 3,474 |  | 4,742 |
Impaired Financing Receivable, with no Related Allowance, Interest Income Recognized |  | 5 |  | 6 | 16 |  | 20 |
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized |  | 46 |  | 52 | 139 |  | 148 |
Impaired Financing Receivable, Interest Income Recognized, Total |  | 51 |  | 58 | 155 |  | 168 |
Impaired Financing Receivable Allocated Loans and Leases |  | 24 |  |  | 24 |  |  | 26
Impaired financing receivable, rounding threshold |  |  |  |  | 1 |  |  | 1
Single-Family Residential [Member] |  |  |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |  |  |
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance |  | 112 | [1] |  | 112 | [1] |  | 116
Impaired Financing Receivable, with Related Allowance, Recorded Investment |  | 112 | [1] |  | 112 | [1] |  | 116
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment |  | 112 | [1] | 118 | 114 | [1] | 119 |
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized |  | 2 | [1] | 2 | 5 | [1] | 5 |
Multi-Family Residential [Member] |  |  |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |  |  |
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance | [1] |  |  |  |  |  |  |
Impaired Financing Receivable, with Related Allowance, Recorded Investment | [1] |  |  |  |  |  |  |
Impaired Financing Receivable, ALL Allocated | [1] |  |  |  |  |  |  |
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment |  |  | [1] | 32 |  | [1] | 34 |
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized |  |  | [1] | 1 |  | [1] | 2 |
Non-Owner Occupied [Member] |  |  |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |  |  |
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance |  | 2,826 |  |  | 2,826 |  |  | 2,856
Impaired Financing Receivable, with Related Allowance, Recorded Investment |  | 2,826 |  |  | 2,826 |  |  | 2,856
Impaired Financing Receivable, ALL Allocated |  | 23 |  |  | 23 |  |  | 24
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment |  | 2,832 |  | 2,989 | 2,841 |  | 3,001 |
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized |  | 39 |  | 42 | 117 |  | 120 |
Owner Occupied [Member] |  |  |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |  |  |
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance |  | 382 |  |  | 382 |  |  | 391
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance |  | 84 |  |  | 84 |  |  | 190
Impaired Financing Receivable, with No Related Allowance, Recorded Investment |  | 128 |  |  | 128 |  |  | 137
Impaired Financing Receivable, with Related Allowance, Recorded Investment |  | 84 |  |  | 84 |  |  | 190
Impaired Financing Receivable, ALL Allocated |  | 1 |  |  | 1 |  |  | 2
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment |  | 129 |  | 140 | 132 |  | 144 |
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment |  | 150 |  | 972 | 175 |  | 1,098 |
Impaired Financing Receivable, with no Related Allowance, Interest Income Recognized |  | 5 |  | 6 | 16 |  | 20 |
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized |  | 2 |  | 5 | 6 |  | 14 |
Commercial [Member] |  |  |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |  |  |
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance |  | 201 | [1] |  | 201 | [1] |  | 277
Impaired Financing Receivable, with Related Allowance, Recorded Investment |  | 201 | [1] |  | 201 | [1] |  | $ 277
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment |  | 202 | [1] | 339 | 212 | [1] | 346 |
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized |  | $ 3 | [1] | $ 2 | $ 11 | [1] | $ 7 |
[1] | Allowance recorded is less than $1 resulting in rounding to zero.

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