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Securities (Gross Unrealized Losses And Fair Value Of The Bank's Investments) (Details) - USD ($) $ in Thousands | Mar. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Schedule of Available-for-sale Securities [Line Items] |  |
Fair Value, Less than 12 months | $ 12,680 | $ 19,090
Unrealized Losses, Less than 12 months | 503 | 282
Fair Value, More than 12 months | 40,075 | 33,535
Unrealized Losses, More than 12 months | 2,465 | 1,601
Fair Value, Total | 52,755 | 52,625
Unrealized Losses, Total | 2,968 | 1,883
US Treasuries [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Fair Value, More than 12 months | 1,814 | 1,858
Unrealized Losses, More than 12 months | 144 | 98
Fair Value, Total | 1,814 | 1,858
Unrealized Losses, Total | 144 | 98
US Agency Obligations [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Fair Value, Less than 12 months, Held-to-maturity | 2,286 | 2,367
Unrealized Losses, Less than 12 months, Held-to-maturity | 150 | 70
Fair Value, More than 12 months, Held-to-maturity | 1,192 | 1,243
Unrealized Losses, More than 12 months, Held-to-maturity | 80 | 32
Fair Value, Total, Held-to-maturity | 3,478 | 3,610
Unrealized Losses, Total, Held-to-maturity | 230 | 102
Fair Value, Less than 12 months | 9,213 | 11,465
Unrealized Losses, Less than 12 months | 425 | 215
Fair Value, More than 12 months | 14,001 | 12,379
Unrealized Losses, More than 12 months | 1,197 | 821
Fair Value, Total | 23,214 | 23,844
Unrealized Losses, Total | 1,622 | 1,036
Mortgage-Backed Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Fair Value, Less than 12 months | 1,414 | 2,802
Unrealized Losses, Less than 12 months | 36 | 26
Fair Value, More than 12 months | 11,415 | 9,712
Unrealized Losses, More than 12 months | 444 | 250
Fair Value, Total | 12,829 | 12,514
Unrealized Losses, Total | 480 | 276
Municipals [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Fair Value, Less than 12 months | 2,053 | 4,823
Unrealized Losses, Less than 12 months | 42 | 41
Fair Value, More than 12 months | 9,048 | 5,644
Unrealized Losses, More than 12 months | 364 | 257
Fair Value, Total | 11,101 | 10,467
Unrealized Losses, Total | 406 | 298
Corporates [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Fair Value, Less than 12 months |  |
Unrealized Losses, Less than 12 months |  |
Fair Value, More than 12 months | 3,797 | 3,942
Unrealized Losses, More than 12 months | 316 | 175
Fair Value, Total | 3,797 | 3,942
Unrealized Losses, Total | $ 316 | $ 175

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