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Summary of Significant Accounting Policies (Details)
12 Months Ended
Dec. 31, 2021
USD ($)
position
segment
Dec. 31, 2020
USD ($)
position
May 19, 2020
shares
May 26, 2015
shares
Accounting Policies [Line Items]        
Loans held for sale $ 5,100,000 $ 34,400,000    
Unpaid Principal balance $ 5,000,000.0 32,900,000    
Loan Non Accrual Period 90 days      
Loan Accrual Period 90 days      
Contractual amount of standby letters of credit $ 4,680,000 4,934,000    
Real Estate Owned, Valuation Allowance 10,000      
Assets held for sale $ 0 0    
Property, Plant and Equipment, Useful Life 39 years      
Net unrealized gains (losses) on securities $ (717,000) 466,000    
Assets held as other real estate owned 0 336,000    
Net unrecognized losses on defined benefit plan $ (27,000) (36,000)    
Number of reportable segments | segment 2      
Other Assets        
Accounting Policies [Line Items]        
Fair value of IRLC $ 471,000 1,600,000    
IRLC Notional amount $ 18,200,000 $ 38,900,000    
IRLC total positions | position 67 150    
Other Liabilities        
Accounting Policies [Line Items]        
Fair value of forward sales commitments $ 651,000 $ 3,100,000    
Forward sales commitments notional amount $ 24,300,000 $ 71,700,000    
US Department of Education [Member]        
Accounting Policies [Line Items]        
Percentages Of Principal And Accrued Interest Covered By Guarantee 98.00%      
United State Department of Agriculture Loans [Member]        
Accounting Policies [Line Items]        
Percentages Of Principal And Accrued Interest Covered By Guarantee 100.00%      
Maximum | Equipment        
Accounting Policies [Line Items]        
Property, Plant and Equipment, Useful Life 7 years      
Minimum | Equipment        
Accounting Policies [Line Items]        
Property, Plant and Equipment, Useful Life 3 years      
Stock Incentive Plan 2015 [Member]        
Accounting Policies [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | shares     120,000 60,000