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Securities (Schedule of Investments' Gross Unrealized Losses and Fair Value Aggregated by Security Type and Length of Time that Individual Securities have been in a Continuous Unrealized Loss Position) (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Debt Securities [Member]    
Schedule of Investments [Line Items]    
Less than 12 Months, Fair Value $ 76,160 $ 203,095
Less than 12 Months, Unrealized Losses (2,723) (23,567)
12 Months or More, Fair Value 340,095 212,027
12 Months or More, Unrealized Losses (61,253) (49,764)
Total, Fair Value 416,255 415,122
Total, Unrealized Losses (63,976) (73,331)
U.S. Treasury Securities [Member]    
Schedule of Investments [Line Items]    
Less than 12 Months, Fair Value 23,162 25,733
Less than 12 Months, Unrealized Losses (449) (849)
12 Months or More, Fair Value 19,270 16,121
12 Months or More, Unrealized Losses (2,225) (2,363)
Total, Fair Value 42,432 41,854
Total, Unrealized Losses (2,674) (3,212)
U.S. Government Agencies [Member]    
Schedule of Investments [Line Items]    
Less than 12 Months, Fair Value 4,805 8,321
Less than 12 Months, Unrealized Losses (91) (885)
12 Months or More, Fair Value 13,835 10,002
12 Months or More, Unrealized Losses (2,565) (2,058)
Total, Fair Value 18,640 18,323
Total, Unrealized Losses (2,656) (2,943)
States And Political Subdivisions [Member]    
Schedule of Investments [Line Items]    
Less than 12 Months, Fair Value 16,673 66,680
Less than 12 Months, Unrealized Losses (508) (11,194)
12 Months or More, Fair Value 110,786 57,367
12 Months or More, Unrealized Losses (23,942) (18,480)
Total, Fair Value 127,459 124,047
Total, Unrealized Losses (24,450) (29,674)
Mortgage-backed Securities-Government Sponsored Entities [Member]    
Schedule of Investments [Line Items]    
Less than 12 Months, Fair Value 31,520 102,361
Less than 12 Months, Unrealized Losses (1,675) (10,639)
12 Months or More, Fair Value 196,204 128,537
12 Months or More, Unrealized Losses (32,521) (26,863)
Total, Fair Value 227,724 230,898
Total, Unrealized Losses $ (34,196) $ (37,502)