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Fair Value Measurements (Narrative) (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Impaired loans $ 2,000 $ 2,020
Commercial [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Impaired loans 2,000 1,805
Commercial Real Estate [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Impaired loans   215
Nonrecurring Basis [Member] | Significant Unobservable Inputs Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Impaired loans 2,000 2,020
Nonrecurring Basis [Member] | Commercial [Member] | Significant Unobservable Inputs Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Impaired loans 2,000 1,805
Nonrecurring Basis [Member] | Commercial Real Estate [Member] | Significant Unobservable Inputs Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Impaired loans   215
Carrying Amount [Member] | Nonrecurring Basis [Member] | Commercial [Member] | Significant Unobservable Inputs Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Impaired loans 4,000 2,000
Reserves 2,000 174
Carrying Amount [Member] | Nonrecurring Basis [Member] | Commercial Real Estate [Member] | Significant Unobservable Inputs Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Impaired loans $ 0 273
Reserves   $ 58