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Securities (Gross Unrealized Losses And Fair Value Of The Bank's Investments) (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Schedule of Available-for-sale Securities [Line Items] |  |
Fair Value, Less than 12 months | $ 19,090 | $ 38,514
Unrealized Losses, Less than 12 months | 282 | 2,575
Fair Value, More than 12 months | 33,535 |
Unrealized Losses, More than 12 months | 1,601 |
Fair Value, Total | 52,625 | 38,514
Unrealized Losses, Total | 1,883 | 2,575
US Treasuries [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Fair Value, Less than 12 months |  | 1,833
Unrealized Losses, Less than 12 months |  | 119
Fair Value, More than 12 months | 1,858 |
Unrealized Losses, More than 12 months | 98 |
Fair Value, Total | 1,858 | 1,833
Unrealized Losses, Total | 98 | 119
US Agency Obligations [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Fair Value, Less than 12 months, Held-to-maturity | 2,367 | 1,193
Unrealized Losses, Less than 12 months, Held-to-maturity | 70 | 91
Fair Value, More than 12 months, Held-to-maturity | 1,243 |
Unrealized Losses, More than 12 months, Held-to-maturity | 32 |
Fair Value, Total, Held-to-maturity | 3,610 | 1,193
Unrealized Losses, Total, Held-to-maturity | 102 | 91
Fair Value, Less than 12 months | 11,465 | 13,109
Unrealized Losses, Less than 12 months | 215 | 1,224
Fair Value, More than 12 months | 12,379 |
Unrealized Losses, More than 12 months | 821 |
Fair Value, Total | 23,844 | 13,109
Unrealized Losses, Total | 1,036 | 1,224
Mortgage-Backed Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Fair Value, Less than 12 months | 2,802 | 11,331
Unrealized Losses, Less than 12 months | 26 | 353
Fair Value, More than 12 months | 9,712 |
Unrealized Losses, More than 12 months | 250 |
Fair Value, Total | 12,514 | 11,331
Unrealized Losses, Total | 276 | 353
Municipals [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Fair Value, Less than 12 months | 4,823 | 7,170
Unrealized Losses, Less than 12 months | 41 | 534
Fair Value, More than 12 months | 5,644 |
Unrealized Losses, More than 12 months | 257 |
Fair Value, Total | 10,467 | 7,170
Unrealized Losses, Total | 298 | 534
Corporates [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Fair Value, Less than 12 months |  | 3,878
Unrealized Losses, Less than 12 months |  | 254
Fair Value, More than 12 months | 3,942 |
Unrealized Losses, More than 12 months | 175 |
Fair Value, Total | 3,942 | 3,878
Unrealized Losses, Total | $ 175 | $ 254

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