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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
Sep. 30, 2021
Dec. 31, 2020
Schedule of Investments [Line Items]    
Less than 12 Months, Fair Value $ 197,894 $ 8,949
Less than 12 Months, Unrealized Losses (3,221) (56)
12 Months or More, Fair Value 1,964  
12 Months or More, Unrealized Losses (35)  
Total, Fair Value 199,858 8,949
Total, Unrealized Losses (3,256) (56)
US Treasury Securities [Member]    
Schedule of Investments [Line Items]    
Less than 12 Months, Fair Value 13,566  
Less than 12 Months, Unrealized Losses (91)  
Total, Fair Value 13,566  
Total, Unrealized Losses (91)  
U.S. Government Agencies [Member]    
Schedule of Investments [Line Items]    
Less than 12 Months, Fair Value 4,850 3,969
Less than 12 Months, Unrealized Losses (160) (29)
12 Months or More, Fair Value 1,964  
12 Months or More, Unrealized Losses (35)  
Total, Fair Value 6,814 3,969
Total, Unrealized Losses (195) (29)
States And Political Subdivisions [Member]    
Schedule of Investments [Line Items]    
Less than 12 Months, Fair Value 58,432  
Less than 12 Months, Unrealized Losses (1,214)  
Total, Fair Value 58,432  
Total, Unrealized Losses (1,214)  
Mortgage-backed Securities-Government Sponsored Entities [Member]    
Schedule of Investments [Line Items]    
Less than 12 Months, Fair Value 121,046 4,980
Less than 12 Months, Unrealized Losses (1,756) (27)
Total, Fair Value 121,046 4,980
Total, Unrealized Losses $ (1,756) $ (27)