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Investments (Aggregate Carrying And Approximate Market Values Of Available-For-Sale Securities) (Details) - USD ($) $ in Thousands | Mar. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Schedule of Available-for-sale Securities [Line Items] |  |
Securities available-for-sale, Amortized Cost | $ 356,360 | $ 367,884
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax | 8,290 | 5,099
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax | 2,368 | 3,517
Securities available-for-sale | 362,282 | 369,466
U.S Treasuries and U.S. Government Agencies [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Securities available-for-sale, Amortized Cost | 4 | 5
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax | 0 | 0
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax | 0 | 0
Securities available-for-sale | 4 | 5
Obligations Of States And Political Subdivisions [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Securities available-for-sale, Amortized Cost | 48,632 | 49,725
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax | 1,293 | 979
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax | 0 | 7
Securities available-for-sale | 49,925 | 50,697
U.S. Government Agencies Mortgage-backed Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Securities available-for-sale, Amortized Cost | 276,666 | 287,933
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax | 4,920 | 2,285
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax | 380 | 2,021
Securities available-for-sale | 281,206 | 288,197
Private Label [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Securities available-for-sale, Amortized Cost | 1,155 | 1,222
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax | 2 | 9
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax | 1 | 0
Securities available-for-sale | 1,156 | 1,231
Trust Preferred Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Securities available-for-sale, Amortized Cost | 6,454 | 6,550
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax | 579 | 463
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax | 1,544 | 1,155
Securities available-for-sale | 5,489 | 5,858
Corporate Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Securities available-for-sale, Amortized Cost | 19,788 | 18,793
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax | 352 | 221
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax | 443 | 321
Securities available-for-sale | 19,697 | 18,693
Debt Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Securities available-for-sale, Amortized Cost | 352,699 | 364,228
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax | 7,146 | 3,957
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax | 2,368 | 3,504
Securities available-for-sale | 357,477 | 364,681
Marketable Equity Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Securities available-for-sale, Amortized Cost | 2,136 | 2,131
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax | 1,136 | 1,142
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax | 0 | 0
Securities available-for-sale | 3,272 | 3,273
Money Market Funds [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Securities available-for-sale, Amortized Cost | 1,525 | 1,525
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax | 8 | 0
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax | 0 | 13
Securities available-for-sale | $ 1,533 | $ 1,512

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- Definition Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt securities classified as available-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563 + Details
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