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Fair Value of Financial Instruments (Details 4) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2021
Dec. 31, 2019
Dec. 31, 2020
Mar. 31, 2020
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Other Real Estate, Foreclosed Assets, and Repossessed Assets $ 1,070   $ 1,194  
Impaired Financing Receivable, Recorded Investment 6,035   $ 6,113 $ 3,374
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 3 [Member] | Appraisal Value Comparison Sales Other Estimates Valuation Technique [Member]        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Other Real Estate, Foreclosed Assets, and Repossessed Assets $ 1,070 $ 1,194    
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 3 [Member] | Appraisal Value Comparison Sales Other Estimates Valuation Technique [Member] | Minimum [Member] | Measurement Input, Discount Rate [Member]        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Discount Rate 6.00% 6.00%    
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 3 [Member] | Appraisal Value Comparison Sales Other Estimates Valuation Technique [Member] | Maximum [Member] | Measurement Input, Discount Rate [Member]        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Discount Rate 16.00% 16.00%    
Impaired Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Appraisal Value Discounted Cash Flows Valuation Technique [Member]        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Impaired Financing Receivable, Recorded Investment $ 6,033 $ 6,111    
Impaired Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Appraisal Value Discounted Cash Flows Valuation Technique [Member] | Minimum [Member] | Measurement Input, Discount Rate [Member]        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Discount Rate 6.00% 6.00%    
Impaired Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Appraisal Value Discounted Cash Flows Valuation Technique [Member] | Maximum [Member] | Measurement Input, Discount Rate [Member]        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Discount Rate 16.00% 16.00%