Fair Value Measurements (Carrying Values And Estimated Fair Values Of Financial Instruments) (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	$ 305,045	$ 276,355	[1]
Loans held for sale, net	647	1,319
Cash surrender value of life insurance policies	46,497	43,603	[1]
Carrying Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	41,454	61,888
Debt Securities, Available-for-sale	305,045	276,355
Other investments	11,804	12,972
Loans held for sale, net	647	1,319
Loans, net	1,982,661	1,900,425
Accrued interest receivable	9,043	8,439
Cash surrender value of life insurance policies	46,497	43,603
Total assets	2,397,151	2,305,001
Deposits	2,044,914	1,913,237
Short-term borrowings	161,745	199,345
Long-term borrowings	712	717
Subordinated debentures owed to unconsolidated subsidiary trusts	19,589	19,589
Accrued interest payable	1,096	1,234
Derivative financial liabilities	3,477	988
Total liabilities	2,231,533	2,135,110
Estimated Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	41,454	61,888
Debt Securities, Available-for-sale	305,045	276,355
Other investments	11,804	12,972
Loans held for sale, net	647	1,319
Loans, net	1,981,162	1,901,020
Accrued interest receivable	9,043	8,439
Cash surrender value of life insurance policies	46,497	43,603
Total assets	2,395,652	2,305,596
Deposits	2,054,077	1,918,610
Short-term borrowings	161,745	199,345
Long-term borrowings	888	854
Subordinated debentures owed to unconsolidated subsidiary trusts	19,589	19,589
Accrued interest payable	1,096	1,234
Derivative financial liabilities	3,477	988
Total liabilities	2,240,872	2,140,620
Fair Value Inputs Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale, net	0	0
Fair Value Inputs Level 1 [Member] | Estimated Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0	0
Debt Securities, Available-for-sale	0	0
Other investments	0	0
Loans held for sale, net	0	0
Loans, net	0	0
Accrued interest receivable	0	0
Cash surrender value of life insurance policies	0	0
Total assets	0	0
Deposits	0	0
Short-term borrowings	0	0
Long-term borrowings	0	0
Subordinated debentures owed to unconsolidated subsidiary trusts	0	0
Accrued interest payable	0	0
Derivative financial liabilities	0	0
Total liabilities	0	0
Fair Value Inputs Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale, net	647	1,319
Fair Value Inputs Level 2 [Member] | Estimated Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	41,454	61,888
Debt Securities, Available-for-sale	305,045	276,355
Other investments	11,804	12,972
Loans held for sale, net	647	1,319
Loans, net	2,496	7,685
Accrued interest receivable	9,043	8,439
Cash surrender value of life insurance policies	46,497	43,603
Total assets	416,986	412,261
Deposits	2,054,077	1,918,610
Short-term borrowings	161,745	199,345
Long-term borrowings	888	854
Subordinated debentures owed to unconsolidated subsidiary trusts	19,589	19,589
Accrued interest payable	1,096	1,234
Derivative financial liabilities	3,477	988
Total liabilities	2,240,872	2,140,620
Fair Value Inputs Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale, net	0	0
Fair Value Inputs Level 3 [Member] | Estimated Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0	0
Debt Securities, Available-for-sale	0	0
Other investments	0	0
Loans held for sale, net	0	0
Loans, net	1,978,666	1,893,335
Accrued interest receivable	0	0
Cash surrender value of life insurance policies	0	0
Total assets	1,978,666	1,893,335
Deposits	0	0
Short-term borrowings	0	0
Long-term borrowings	0	0
Subordinated debentures owed to unconsolidated subsidiary trusts	0	0
Accrued interest payable	0	0
Derivative financial liabilities	0	0
Total liabilities	$ 0	$ 0

[1] Derived from audited consolidated financial statements