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Commitments and Contingencies (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Dec. 31, 2019
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]    
Guarantee commitment $ 2,289  
Probable loan loss experience on unfunded obligations [Member]    
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]    
Estimate of possible loss 175 $ 250
Commitments to extend credit    
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]    
Commitments to extend credit 290,231 291,182
Undisbursed lines of credit    
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]    
Commitments to extend credit $ 288,027 289,465
Undisbursed lines of credit | Minimum    
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]    
Commitments to extend credit, term of agreement 1 month  
Undisbursed lines of credit | Maximum    
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]    
Commitments to extend credit, term of agreement 12 months  
Undisbursed portions of construction loans    
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]    
Commitments to extend credit $ 57,930 74,019
Standby letters of credit and financial guarantees    
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]    
Commitments to extend credit $ 2,204 $ 1,717
Standby letters of credit and financial guarantees | Maximum    
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]    
Commitments to extend credit, term of agreement 1 year