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Fair Value (Narrative Disclosures) (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]    
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount1 $ 0 $ 0
Fair Value, Assets, Level 2 to Level 1 Transfers, Amount1 0 0
Fair value, assets, transfers into level 3 0 0
Fair value, assets, transfers out of level 3 0 0
Fair Value, Liabilities, Level 1 to Level 2 Transfers, Amount1 0 0
Fair Value, Liabilities, Level 2 to Level 1 Transfers, Amount1 0 0
Fair value, liabilities, transfers into level 3 0 0
Fair value, liabilities, transfers out of level 3 $ 0 0
Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Quantification of unobservable inputs for level 3 values for impaired loans 5.00%  
Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Quantification of unobservable inputs for level 3 values for impaired loans 91.00%  
Weighted average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Quantification of unobservable inputs for level 3 values for impaired loans 26.00%  
Fair Value, Nonrecurring [Member] | Impaired loans    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Assets, Fair Value Disclosure $ 17,203,000 15,699,000
Fair Value, Nonrecurring [Member] | Foreclosed properties    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Assets, Fair Value Disclosure 34,000 2,919,000
Fair Value, Nonrecurring [Member] | Loan servicing rights    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Assets, Fair Value Disclosure 1,325,000 1,195,000
Fair Value, Nonrecurring [Member] | Fair Value Measurements - Level 1 Inputs | Impaired loans    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Assets, Fair Value Disclosure 0 0
Fair Value, Nonrecurring [Member] | Fair Value Measurements - Level 1 Inputs | Foreclosed properties    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Assets, Fair Value Disclosure 0 0
Fair Value, Nonrecurring [Member] | Fair Value Measurements - Level 1 Inputs | Loan servicing rights    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Assets, Fair Value Disclosure 0 0
Fair Value, Nonrecurring [Member] | Fair Value Measurements - Level 2 Inputs | Impaired loans    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Assets, Fair Value Disclosure 0 0
Fair Value, Nonrecurring [Member] | Fair Value Measurements - Level 2 Inputs | Foreclosed properties    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Assets, Fair Value Disclosure 0 0
Fair Value, Nonrecurring [Member] | Fair Value Measurements - Level 2 Inputs | Loan servicing rights    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Assets, Fair Value Disclosure 0 0
Fair Value, Nonrecurring [Member] | Fair Value Measurements - Level 3 Inputs | Impaired loans    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Assets, Fair Value Disclosure 17,203,000 15,699,000
Fair Value, Nonrecurring [Member] | Fair Value Measurements - Level 3 Inputs | Foreclosed properties    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Assets, Fair Value Disclosure 34,000 2,919,000
Fair Value, Nonrecurring [Member] | Fair Value Measurements - Level 3 Inputs | Loan servicing rights    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Assets, Fair Value Disclosure $ 1,325,000 $ 1,195,000