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Regulatory Capital Matters (Actual And Required Capital Amounts And Ratios Of CFBank) (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
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Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Total Capital to risk weighted assets, Actual Amount | $ 136,683 | $ 95,164
Tier 1 (Core) Capital to risk weighted assets, Actual Amount | 124,678 | 87,857
Common equity tier 1 capital to risk-weighted assets, Actual Amount | 124,678 | 87,857
Tier 1 (Core) Capital to adjusted total assets (Leverage ratio), Actual Amount | $ 124,678 | $ 87,857
Total Capital to risk weighted assets, Actual Ratio | 0.1431 | 0.1296
Tier 1 (Core) Capital to risk weighted assets, Actual Ratio | 0.1305 | 0.1197
Common equity tier 1 capital to risk-weighted assets, Actual Ratio | 0.1305% | 0.1197%
Tier 1 (Core) Capital to adjusted total assets, Actual Ratio | 0.0974 | 0.1058
Total Capital to risk weighted assets, To Be Well Capitalized Under Applicable Regulatory Capital Standards Amount | $ 95,522 | $ 73,425
Tier 1 (Core) Capital to risk weighted assets, To Be Well Capitalized Under Applicable Regulatory Capital Standards Amount | 76,418 | 58,740
Common equity tier 1 capital to risk-weighted assets, To Be Well Capitalized Under Applicable Regulatory Capital Standards Amount | 62,089 | 47,726
Tier 1 (Core) Capital to adjusted total assets, To Be Well Capitalized Under Applicable Regulatory Capital Standards Amount | $ 63,984 | $ 41,526
Total Capital to risk weighted assets, To Be Well Capitalized Under Applicable Regulatory Capital Standards Ratio | 0.1000 | 0.1000
Tier 1 (Core) Capital to risk weighted assets, To Be Well Capitalized Under Applicable Regulatory Capital Standards Ratio | 0.0800 | 0.0800
Common equity tier 1 capital to risk-weighted assets, To Be Well Capitalized Under Applicable Regulatory Capital Standards Ratio | 0.065% | 0.065%
Tier 1 (Core) Capital to adjusted total assets, To Be Well Capitalized Under Applicable Regulatory Capital Standards Ratio | 0.0500 | 0.0500
Basel III Fully Phased-In [Member] |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Total Capital to risk weighted assets, Minimum Capital Required-Basel III Fully Phased-In Amount | $ 100,298 | $ 77,097
Tier 1 (Core) Capital to risk weighted assets, Minimum Capital Required-Basel III Fully Phased-In Amount | 81,194 | 62,412
Common equity tier 1 capital to risk-weighted assets, Minimum Capital Required-Basel III Fully Phased-In Amount | 66,866 | 51,398
Tier 1 (Core) Capital to adjusted total assets, Minimum Capital Required-Basel III Fully Phased-In Amount | $ 51,187 | $ 33,221
Total Capital to risk weighted assets, Minimum Capital Required-Basel III Fully Phased-In Ratio | 0.1050 | 0.1050
Tier 1 (Core) Capital to risk weighted assets, Minimum Capital Required-Basel III Fully Phased-In Ratio | 0.0850 | 0.0850
Common equity tier 1 capital to risk-weighted assets, Minimum Capital Required-Basel III Fully Phased-In Ratio | 0.07% | 0.07%
Tier 1 (Core) Capital to adjusted total assets, Minimum Capital Required-Basel III Fully Phased-In Ratio | 0.0400 | 0.0400

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