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Merger - Additional Information (Details) - USD ($)
12 Months Ended
Oct. 12, 2018
Dec. 31, 2019
Dec. 31, 2018
Merger-related expenses     $ 577,000
Core Deposits [Member]      
Intangible Assets, Net (Excluding Goodwill)   $ 221,193  
Kentucky Federal Savings and Loan Association [Member]      
Stock Issued During Period, Shares, Acquisitions 63,382    
Bargain purchase gain $ 2,200,000    
Merger-related expenses   $ 18,000  
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Loans And Advances net 16,323,595    
Loans And Advances Acquired Cumulative Of Interest Outstanding 16,419,786    
Loans And Advances Acquired Expected To Be Uncollected $ 251,369    
Kentucky Federal Savings and Loan Association [Member] | Core Deposits [Member]      
Finite-Lived Intangible Asset, Useful Life   10 years