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Summary of Significant Accounting Policies - Additional Information (Details) - USD ($)
 1 Months Ended 12 Months Ended
Apr. 30, 2017
Dec. 31, 2021
Dec. 31, 2020
Sep. 30, 2020
Apr. 27, 2017
Summary Of Significant Accounting Policies [Line Items]          
Stock issued, price per share         $ 10.00
Shares sold as percentage of outstanding shares of common stock         46.00%
Basic earnings per share [1]   $ 1.10 $ 0.41    
Diluted earnings per share [1]   $ 1.09 0.41    
Basic and diluted earnings per share     $ 0.41    
Net earnings   $ 7,573,000 $ 3,088,000    
Weighted average common shares outstanding     7,570,797    
Weighted average common shares outstanding, basic   6,873,466      
Weighted average common shares outstanding, diluted   6,696,406      
ASU 2016-02          
Summary Of Significant Accounting Policies [Line Items]          
Change in accounting principle, accounting standards update, adopted   true      
Common Stock          
Summary Of Significant Accounting Policies [Line Items]          
Sale of common stock shares 3,467,595        
ESOP          
Summary Of Significant Accounting Policies [Line Items]          
Percentage of common stock purchased         3.92%
Community First Bancshares, MHC          
Summary Of Significant Accounting Policies [Line Items]          
Common stock ownership percentage       54.00% 54.00%
[1] Amounts related to periods prior to the date of Conversion (January 20, 2021) have been restated to give the retroactive recognition to the exchange ratio applied in the Conversion (0.90686) (see Note 1).