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Nature of Business and Significant Accounting Policies (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
location
Dec. 31, 2018
USD ($)
Jan. 01, 2020
USD ($)
Nature Of Business And Significant Accounting Policies [Line Items]      
Number of branches | location 11    
Number of representative offices | location 2    
Percentage of credit extension 80.00%    
Threshold percentage for loan amount against the original appraised value of the property 90.00%    
Threshold percentage for private mortgage insurance required for that portion of loan 80.00%    
Amount of consumer mortgages and loans secured by residential real estate properties in process of foreclosure $ 781 $ 526  
Amortization method purchased customer accounts straight-line basis    
Useful life of purchased customer accounts 13 years    
Other real estate owned $ 1,417 1,685  
Income before income taxes 7,492 5,371  
Other assets 5,209 6,342  
Other liabilities 11,156 10,108  
Accounting Standards Update 2016-02 | Scenario Forecast Adjustment      
Nature Of Business And Significant Accounting Policies [Line Items]      
Other assets     $ 6,700
Other liabilities     $ 6,700
Commercial real estate      
Nature Of Business And Significant Accounting Policies [Line Items]      
Other real estate owned 482 750  
Residential Real Estate      
Nature Of Business And Significant Accounting Policies [Line Items]      
Other real estate owned $ 935 $ 935