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Parent Company Financial Information (Condensed Statements Of Condition) (Details) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
--- | --- | --- | --- | ---
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Other assets | $ 63,248 | $ 63,281 |  |
Total assets | 3,381,024 | 3,089,521 |  |
Long-term borrowings, net of issuance costs of $1,010 | 38,990 |  |  |
Other liabilities | 24,559 | 24,658 |  |
Shareholders' equity | 293,844 | 279,532 | $ 254,839 | $ 253,897
Total liabilities and shareholders' equity | 3,381,024 | 3,089,521 |  |
Debt issuance costs | 1,010 |  |  |
Parent Company [Member] |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Cash and due from subsidiary | 15,787 | 9,559 |  |
Investment in and receivables due from subsidiary | 318,928 | 273,237 |  |
Other assets | 4,451 | 3,433 |  |
Total assets | 339,166 | 286,229 |  |
Long-term borrowings, net of issuance costs of $1,010 | 38,990 |  |  |
Other liabilities | 6,332 | 6,697 |  |
Shareholders' equity | 293,844 | 279,532 |  |
Total liabilities and shareholders' equity | 339,166 | $ 286,229 |  |
Debt issuance costs | $ 1,010 |  |  |

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