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Regulatory Capital Matters (Actual And Required Capital Amounts And Ratios Of CFBank) (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
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Regulatory Capital Matters [Abstract] |  |
Total Capital to risk weighted assets, Actual Amount | $ 145,379 | $ 136,683
Tier 1 (Core) Capital to risk weighted assets, Actual Amount | 131,544 | 124,678
Common equity tier 1 capital to risk-weighted assets, Actual Amount | 131,544 | 124,678
Tier 1 (Core) Capital to adjusted total assets (Leverage ratio), Actual Amount | $ 131,544 | $ 124,678
Total Capital to risk weighted assets, Actual Ratio | 0.1318 | 0.1431
Tier 1 (Core) Capital to risk weighted assets, Actual Ratio | 0.1192 | 0.1305
Common equity tier 1 capital to risk-weighted assets, Actual Ratio | 0.1192% | 0.1305%
Tier 1 (Core) Capital to adjusted total assets, Actual Ratio | 0.0937 | 0.0974
Total Capital to risk weighted assets, Minimum Capital Required-Basel III Fully Phased-In Amount | $ 115,851 | $ 100,298
Tier 1 (Core) Capital to risk weighted assets, Minimum Capital Required-Basel III Fully Phased-In Amount | 93,784 | 81,194
Common equity tier 1 capital to risk-weighted assets, Minimum Capital Required-Basel III Fully Phased-In Amount | 77,234 | 66,866
Tier 1 (Core) Capital to adjusted total assets, Minimum Capital Required-Basel III Fully Phased-In Amount | $ 56,150 | $ 51,187
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
Total Capital to risk weighted assets, To Be Well Capitalized Under Applicable Regulatory Capital Standards Amount | $ 110,334 | $ 95,522
Tier 1 (Core) Capital to risk weighted assets, To Be Well Capitalized Under Applicable Regulatory Capital Standards Amount | 88,267 | 76,418
Common equity tier 1 capital to risk-weighted assets, To Be Well Capitalized Under Applicable Regulatory Capital Standards Amount | 71,717 | 62,089
Tier 1 (Core) Capital to adjusted total assets, To Be Well Capitalized Under Applicable Regulatory Capital Standards Amount | $ 70,188 | $ 63,984
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

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