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Disclosures About Fair Value of Assets and Liabilities (Details) - Summary of quantitative information about unobservable inputs used in recurring and nonrecurring - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Collateral Dependent Impaired Loans [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value $ 2,527  
Valuation technique Market comparable properties  
Unobservable inputs Comparability adjustments (%)  
Collateral Dependent Impaired Loans [Member] | Maximum [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value $ 1,027  
Mortgage Servicing Rights [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value $ 5,084  
Valuation technique Discounted cash flow  
Unobservable inputs Discount Rate  
Range (weighted average)   10.30%
Mortgage Servicing Rights [Member] | Constant Prepayment Rate [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Unobservable inputs Constant prepayment rate  
Range (weighted average)   7.02%
Mortgage Servicing Rights [Member] | P and I Earnings Credit [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value $ 55  
Valuation technique Discounted cash flow  
Unobservable inputs P&I earnings credit  
Range (weighted average)   2.51%
Mortgage Servicing Rights [Member] | T and I Earnings Credit [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Unobservable inputs T&I earnings credit  
Range (weighted average)   3.02%
Mortgage Servicing Rights [Member] | Inflation for cost of servicing [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Unobservable inputs Inflation for cost of servicing  
Range (weighted average)   1.50%
Mortgage Servicing Rights [Member] | Maximum [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value $ 3,191  
Mortgage Servicing Rights [Member] | Maximum [Member] | P and I Earnings Credit [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value $ 83  
Mortgage Servicing Rights [Member] | Minimum [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (weighted average) 9.36%  
Mortgage Servicing Rights [Member] | Minimum [Member] | Constant Prepayment Rate [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (weighted average) 10.19%  
Mortgage Servicing Rights [Member] | Minimum [Member] | P and I Earnings Credit [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (weighted average) 1.78%  
Mortgage Servicing Rights [Member] | Minimum [Member] | T and I Earnings Credit [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (weighted average) 1.93%  
Mortgage Servicing Rights [Member] | Minimum [Member] | Inflation for cost of servicing [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (weighted average) 1.50%