3. Fair Value Measurements (Carrying Values And Estimated Fair Values Of Financial Instruments) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
Securities available for sale	$ 291,258	$ 281,539	$ 291,992
Loans held for sale, net	602	226
Carrying Value [Member]
Cash and cash equivalents	16,103	14,802
Securities available for sale	291,258	281,539
Other investments	8,004	14,658
Loans held for sale, net	602	226
Loans, net	939,169	937,168
Accrued interest receivable	5,364	5,621
Total assets	1,260,500	1,254,014
Deposits	1,016,735	1,027,125
Short-term borrowings	54,163	3,958
Long-term borrowings	163,540	203,268
Subordinated debentures	16,800	16,800
Subordinated debentures owed to unconsolidated subsidiary trusts	19,589	19,589
Accrued interest payable	1,473	1,877
Derivative financial liabilities	117	0
Total liabilities	1,272,417	1,272,617
Estimate Fair Value [Member]
Cash and cash equivalents	16,103	14,802
Securities available for sale	291,258	281,539
Other investments	8,004	14,658
Loans held for sale, net	602	226
Loans, net	965,070	965,454
Accrued interest receivable	5,364	5,621
Total assets	1,286,401	1,282,300
Deposits	1,045,084	1,064,957
Short-term borrowings	54,163	3,958
Long-term borrowings	175,237	220,175
Subordinated debentures	16,800	16,800
Subordinated debentures owed to unconsolidated subsidiary trusts	19,589	19,589
Accrued interest payable	1,473	1,877
Derivative financial liabilities	117	0
Total liabilities	$ 1,312,463	$ 1,327,356