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Fair Values of Financial Instruments (Quantitative Information about Level 3 Fair Value Measurements) (Details)
$ in Thousands
Mar. 31, 2021
USD ($)
item
Dec. 31, 2020
USD ($)
item
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Impaired Loans | $ $ 18,306 $ 10,130
Other Real Estate Owned | $ 414 414
Significant Unobservable Inputs (Level 3) [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Impaired Loans | $ 18,306 10,130
Other Real Estate Owned | $ $ 414 $ 414
Significant Unobservable Inputs (Level 3) [Member] | Minimum [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Impaired Loans, Range | item 0 0
Other Real Estate Owned, Range | item 0 0
Significant Unobservable Inputs (Level 3) [Member] | Maximum [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Impaired Loans, Range | item 10 10
Other Real Estate Owned, Range | item 10 10