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Investments (Gross Unrealized Losses And Fair Value Of The Bank's Investments) (Details) (USD $) In Thousands, unless otherwise specified | Jun. 30, 2013 | Dec. 31, 2012
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Gain (Loss) on Investments [Line Items] |  |
Fair Value, Less than 12 months | $ 33,318 | $ 10,995
Unrealized Losses, Less than 12 months | 2,471 | 170
Fair Value, More than 12 months |  |
Unrealized Losses, More than 12 months |  |
Fair Value, Total | 33,318 | 10,995
Unrealized Losses, Total | 2,471 | 170
US Treasuries [Member] |  |
Gain (Loss) on Investments [Line Items] |  |
Fair Value, Less than 12 months | 3,736 |
Unrealized Losses, Less than 12 months | 167 |
Fair Value, More than 12 months |  |
Unrealized Losses, More than 12 months |  |
Fair Value, Total | 3,736 |
Unrealized Losses, Total | 167 |
US Agency Obligations [Member] |  |
Gain (Loss) on Investments [Line Items] |  |
Fair Value, Less than 12 months | 15,480 | 9,116
Unrealized Losses, Less than 12 months | 1,418 | 95
Fair Value, More than 12 months |  |
Unrealized Losses, More than 12 months |  |
Fair Value, Total | 15,480 | 9,116
Unrealized Losses, Total | 1,418 | 95
Municipals [Member] |  |
Gain (Loss) on Investments [Line Items] |  |
Fair Value, Less than 12 months | 12,211 | 1,879
Unrealized Losses, Less than 12 months | 765 | 75
Fair Value, More than 12 months |  |
Unrealized Losses, More than 12 months |  |
Fair Value, Total | 12,211 | 1,879
Unrealized Losses, Total | 765 | 75
Other (Corporates) [Member] |  |
Gain (Loss) on Investments [Line Items] |  |
Fair Value, Less than 12 months | 1,891 |
Unrealized Losses, Less than 12 months | 121 |
Fair Value, More than 12 months |  |
Unrealized Losses, More than 12 months |  |
Fair Value, Total | 1,891 |
Unrealized Losses, Total | $ 121 |

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