Fair Value Measurements (Carrying Values And Estimated Fair Values Of Financial Instruments) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	$ 282,135	$ 282,834	$ 281,865
Loans held for sale, net	85	527
Carrying Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	12,287	12,510
Securities available for sale	282,135	282,834
Other investments	7,247	6,183
Loans held for sale, net	85	527
Loans, net	1,039,669	1,019,842
Accrued interest receivable	5,564	5,838
Total assets	1,346,987	1,327,734
Deposits	1,058,308	1,061,314
Short-term borrowings	148,985	123,633
Long-term borrowings	77,013	77,490
Subordinated debentures	5,000	16,800
Subordinated debentures owed to unconsolidated subsidiary trusts	19,589	19,589
Accrued interest payable	828	812
Derivative financial liabilities	4,292	2,911
Total liabilities	1,314,015	1,302,549
Estimated Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	12,287	12,510
Securities available for sale	282,135	282,834
Other investments	7,247	6,183
Loans held for sale, net	85	527
Loans, net	1,054,159	1,033,890
Accrued interest receivable	5,564	5,838
Total assets	1,361,477	1,341,782
Deposits	1,075,963	1,078,406
Short-term borrowings	148,985	123,633
Long-term borrowings	84,146	84,732
Subordinated debentures	5,000	16,800
Subordinated debentures owed to unconsolidated subsidiary trusts	19,589	19,589
Accrued interest payable	828	812
Derivative financial liabilities	4,292	2,911
Total liabilities	$ 1,338,803	$ 1,326,883