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Commitments and Contingencies (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Commitments and Contingencies    
Federal reserve deposit requirement reserve amount $ 17,392  
Uninsured deposits $ 327  
% of Total Loans 100.00% 100.00%
Probable loan loss experience on unfunded obligations    
Commitments and Contingencies    
Loss Contingency, Estimate of Possible Loss $ 250 $ 225
Undisbursed lines of credit    
Commitments and Contingencies    
Commitments to extend credit 289,465 309,824
Standby letters of credit and financial guarantees    
Commitments and Contingencies    
Commitments to extend credit $ 1,717 $ 2,450
Commercial    
Commitments and Contingencies    
Percentage of loan commitments 52.81%  
% of Total Loans 13.50% 12.00%
Real Estate    
Commitments and Contingencies    
Percentage of loan commitments 39.13%  
Maximum loan to value ratio 80.00%  
Consumer    
Commitments and Contingencies    
Percentage of loan commitments 8.06%  
Real estate related    
Commitments and Contingencies    
% of Total Loans 82.00% 83.80%
Commercial and Real estate related    
Commitments and Contingencies    
% of Total Loans 95.50% 95.80%