Subsequent Events	12 Months Ended
Dec. 31, 2020
Investments Debt And Equity Securities [Abstract]
Subsequent Events	(17)Subsequent Events On January 20, 2021, the Company completed the Conversion of Community First Bancshares, MHC, the top tier mutual holding company of Community First Bancshares, Inc. Community First Bancshares, Inc. was the former mid-tier holding company for Affinity Bank (formerly named Newton Federal Bank). Prior to completion of the Conversion, approximately 54% of the shares of common stock of Community First Bancshares, Inc. were owned by Community First Bancshares, MHC. In conjunction with the Conversion, Community First Bancshares, Inc. was merged into Affinity Bancshares, Inc. (and ceased to exist) and Affinity Bancshares, Inc. became its successor holding company for Newton Federal Bank. As part of the Conversion, on January 20, 2021, the Company raised gross proceeds of $37.0 million by selling a total of 3,701,509 shares of common stock at $10.00 per share in a stock offering. The Company utilized $3.0 million of the proceeds to fund an addition to its Employee Stock Ownership Plan (“ESOP”) loan for the acquisition of additional shares at $10.00 per share. Expenses incurred related to the offering were $1.6 million and have been recorded against offering proceeds. The Company invested $16.3 million of the net proceeds it received from the sale into the Bank’s operations and has retained the remaining amount for general corporate purposes. Concurrent with the completion of the stock offering, each share of Community First Bancshares, Inc. common stock owned by public stockholders (stockholders other than Community First Bancshares, MHC) was exchanged for 0.90686 shares of Company common stock.

Subsequent Events

12 Months Ended

Dec. 31, 2020

Investments Debt And Equity Securities [Abstract]

(17)Subsequent Events

On January 20, 2021, the Company completed the Conversion of Community First Bancshares, MHC, the top tier mutual holding company of Community First Bancshares, Inc. Community First Bancshares, Inc. was the former mid-tier holding company for Affinity Bank (formerly named Newton Federal Bank). Prior to completion of the Conversion, approximately 54% of the shares of common stock of Community First Bancshares, Inc. were owned by Community First Bancshares, MHC. In conjunction with the Conversion, Community First Bancshares, Inc. was merged into Affinity Bancshares, Inc. (and ceased to exist) and Affinity Bancshares, Inc. became its successor holding company for Newton Federal Bank.

As part of the Conversion, on January 20, 2021, the Company raised gross proceeds of $37.0 million by selling a total of 3,701,509 shares of common stock at $10.00 per share in a stock offering. The Company utilized $3.0 million of the proceeds to fund an addition to its Employee Stock Ownership Plan (“ESOP”) loan for the acquisition of additional shares at $10.00 per share. Expenses incurred related to the offering were $1.6 million and have been recorded against offering proceeds. The Company invested $16.3 million of the net proceeds it received from the sale into the Bank’s operations and has retained the remaining amount for general corporate purposes. Concurrent with the completion of the stock offering, each share of Community First Bancshares, Inc. common stock owned by public stockholders (stockholders other than Community First Bancshares, MHC) was exchanged for 0.90686 shares of Company common stock.