Condensed Financial Statements Of Parent Company (Balance Sheets) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Condensed Financial Statements, Captions [Line Items]
Equity Securities, FV-NI	$ 20,202	$ 0
Other investments	11,304	14,185
Premises and equipment	56,371	52,537
Other assets	37,262	29,791
Total assets	3,576,719	3,106,384
Subordinated Debt	102,891	29,364
Subordinated debentures owed to unconsolidated subsidiary trusts	19,589	19,589
Other liabilities	42,852	39,355
Total liabilities	3,249,246	2,824,804
Preferred stock, $1.00 par value, authorized 250,000 shares; issued: 2021 - 1,500 shares	14,920	0
Common stock and related surplus, $2.50 par value; authorized 20,000,000 shares; issued: 2021 - 12,763,827 shares, 2020 - 12,985,708 shares; outstanding: 2021 - 12,743,125 shares, 2020 - 12,942,004 shares	89,525	94,964
Unallocated common stock held by Employee Stock Ownership Plan - 2021 - 20,702 shares, 2020 - 43,704 shares	(224)	(472)
Retained earnings	217,770	181,643
Accumulated other comprehensive income	5,482	5,445	$ 2,535	$ (1,016)
Total shareholders' equity	327,473	281,580	$ 247,764	$ 219,830
Total liabilities and shareholders' equity	3,576,719	3,106,384
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Cash	14,279	5,937
Investment in subsidiaries	419,557	327,354
Equity Securities, FV-NI	20,202	0
Other investments	7	7
Premises and equipment	129	97
Other assets	1,971	1,837
Total assets	456,145	335,232
Subordinated Debt	102,891	29,364
Subordinated debentures owed to unconsolidated subsidiary trusts	19,589	19,589
Other liabilities	6,192	4,699
Total liabilities	128,672	53,652
Preferred stock, $1.00 par value, authorized 250,000 shares; issued: 2021 - 1,500 shares	14,920	0
Common stock and related surplus, $2.50 par value; authorized 20,000,000 shares; issued: 2021 - 12,763,827 shares, 2020 - 12,985,708 shares; outstanding: 2021 - 12,743,125 shares, 2020 - 12,942,004 shares	89,525	94,964
Unallocated common stock held by Employee Stock Ownership Plan - 2021 - 20,702 shares, 2020 - 43,704 shares	(224)	(472)
Retained earnings	217,770	181,643
Accumulated other comprehensive income	5,482	5,445
Total shareholders' equity	327,473	281,580
Total liabilities and shareholders' equity	$ 456,145	$ 335,232