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Securities Available For Sale (Schedule Of Fair Value Of Securities With Continuous Unrealized Losses) (Details)
$ in Thousands
Sep. 30, 2015
USD ($)
security
Dec. 31, 2014
USD ($)
security
Schedule of Available for sale Securities [Line Items]    
Securities with continuous unrealized losses, Less than 12 months, Estimated Fair Value $ 73,887 $ 78,188
Securities with continuous unrealized losses, Less than 12 months, Number of Investments | security 125 109
Securities with continuous unrealized losses, Less than 12 months, Unrealized Losses $ 787 $ 1,898
Securities with continuous unrealized losses, 12 months or longer, Estimated Fair Value $ 38,258 $ 42,037
Securities with continuous unrealized losses, 12 months or longer, Number of Investments | security 69 75
Securities with continuous unrealized losses, 12 months or longer, Unrealized Losses $ 897 $ 434
Securities with continuous unrealized losses, Estimated Fair Value $ 112,145 $ 120,225
Securities with continuous unrealized losses, Number of Investments | security 194 184
Securities with continuous unrealized losses, Unrealized Losses $ 1,684 $ 2,332
US Government-Sponsored Enterprises [Member]    
Schedule of Available for sale Securities [Line Items]    
Securities with continuous unrealized losses, Less than 12 months, Estimated Fair Value $ 36,750 $ 45,899
Securities with continuous unrealized losses, Less than 12 months, Number of Investments | security 57 53
Securities with continuous unrealized losses, Less than 12 months, Unrealized Losses $ 275 $ 1,168
Securities with continuous unrealized losses, 12 months or longer, Estimated Fair Value $ 22,812 $ 35,511
Securities with continuous unrealized losses, 12 months or longer, Number of Investments | security 32 45
Securities with continuous unrealized losses, 12 months or longer, Unrealized Losses $ 556 $ 369
Securities with continuous unrealized losses, Estimated Fair Value $ 59,562 $ 81,410
Securities with continuous unrealized losses, Number of Investments | security 89 98
Securities with continuous unrealized losses, Unrealized Losses $ 831 $ 1,537
US Government Agency [Member]    
Schedule of Available for sale Securities [Line Items]    
Securities with continuous unrealized losses, Less than 12 months, Estimated Fair Value $ 10,229 $ 19,404
Securities with continuous unrealized losses, Less than 12 months, Number of Investments | security 19 24
Securities with continuous unrealized losses, Less than 12 months, Unrealized Losses $ 120 $ 483
Securities with continuous unrealized losses, 12 months or longer, Estimated Fair Value $ 10,989 $ 3,657
Securities with continuous unrealized losses, 12 months or longer, Number of Investments | security 18 21
Securities with continuous unrealized losses, 12 months or longer, Unrealized Losses $ 150 $ 46
Securities with continuous unrealized losses, Estimated Fair Value $ 21,218 $ 23,061
Securities with continuous unrealized losses, Number of Investments | security 37 45
Securities with continuous unrealized losses, Unrealized Losses $ 270 $ 529
Private Label Mortgage-Backed Securities [Member]    
Schedule of Available for sale Securities [Line Items]    
Securities with continuous unrealized losses, Less than 12 months, Estimated Fair Value $ 8 $ 336
Securities with continuous unrealized losses, Less than 12 months, Number of Investments | security 1 4
Securities with continuous unrealized losses, Less than 12 months, Unrealized Losses   $ 7
Securities with continuous unrealized losses, 12 months or longer, Estimated Fair Value $ 182 $ 145
Securities with continuous unrealized losses, 12 months or longer, Number of Investments | security 5 4
Securities with continuous unrealized losses, 12 months or longer, Unrealized Losses $ 8 $ 7
Securities with continuous unrealized losses, Estimated Fair Value $ 190 $ 481
Securities with continuous unrealized losses, Number of Investments | security 6 8
Securities with continuous unrealized losses, Unrealized Losses $ 8 $ 14
Obligations Of States And Political Subdivisions Thereof [Member]    
Schedule of Available for sale Securities [Line Items]    
Securities with continuous unrealized losses, Less than 12 months, Estimated Fair Value $ 26,900 $ 12,549
Securities with continuous unrealized losses, Less than 12 months, Number of Investments | security 48 28
Securities with continuous unrealized losses, Less than 12 months, Unrealized Losses $ 392 $ 240
Securities with continuous unrealized losses, 12 months or longer, Estimated Fair Value $ 4,275 $ 2,724
Securities with continuous unrealized losses, 12 months or longer, Number of Investments | security 14 5
Securities with continuous unrealized losses, 12 months or longer, Unrealized Losses $ 183 $ 12
Securities with continuous unrealized losses, Estimated Fair Value $ 31,175 $ 15,273
Securities with continuous unrealized losses, Number of Investments | security 62 33
Securities with continuous unrealized losses, Unrealized Losses $ 575 $ 252