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Regulatory Capital Matters (Actual And Required Capital Amounts And Ratios Of CFBank) (Details) $ in Thousands | Sep. 30, 2025 USD ($) | Dec. 31, 2024 USD ($)
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Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Total Capital to risk weighted assets, Actual Amount | $ 254,287 | $ 230,120
Tier 1 (Core) Capital to risk weighted assets, Actual Amount | 234,936 | 210,675
Common equity tier 1 capital to risk-weighted assets, Actual Amount | 234,936 | 210,675
Tier 1 (Core) Capital to adjusted total assets (Leverage Ratio), Actual Amount | $ 234,936 | $ 210,675
Total Capital to risk weighted assets, Actual Ratio | 0.1488 | 0.136
Tier 1 (Core) Capital to risk weighted assets, Actual Ratio | 0.1374 | 0.1245
Common equity tier 1 capital to risk-weighted assets, Actual Ratio | 0.1374 | 0.1245
Tier 1 (Core) Capital to adjusted total assets, Actual Ratio | 0.1119 | 0.1033
Total Capital to risk weighted assets, To Be Well Capitalized Under Applicable Regulatory Capital Standards Amount | $ 170,945 | $ 169,177
Tier 1 (Core) Capital to risk weighted assets, To Be Well Capitalized Under Applicable Regulatory Capital Standards Amount | 136,756 | 135,342
Common equity tier 1 capital to risk-weighted assets, To Be Well Capitalized Under Applicable Regulatory Capital Standards Amount | 111,114 | 109,965
Tier 1 (Core) Capital to adjusted total assets, To Be Well Capitalized Under Applicable Regulatory Capital Standards Amount | $ 105,014 | $ 102,018
Total Capital to risk weighted assets, To Be Well Capitalized Under Applicable Regulatory Capital Standards Ratio | 0.10 | 0.10
Tier 1 (Core) Capital to risk weighted assets, To Be Well Capitalized Under Applicable Regulatory Capital Standards Ratio | 0.08 | 0.08
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 | 0.05 | 0.05
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 Amount | $ 179,492 | $ 177,636
Tier 1 (Core) Capital to risk weighted assets, Minimum Capital Required-Basel III Amount | 145,303 | 143,801
Common equity tier 1 capital to risk-weighted assets, Minimum Capital Required-Basel III Amount | 119,661 | 118,424
Tier 1 (Core) Capital to adjusted total assets, Minimum Capital Required-Basel III Amount | $ 84,011 | $ 81,614
Total Capital to risk weighted assets, Minimum Capital Required-Basel III Ratio | 0.105 | 0.105
Tier 1 (Core) Capital to risk weighted assets, Minimum Capital Required-Basel III Ratio | 0.085 | 0.085
Common equity tier 1 capital to risk-weighted assets, Minimum Capital Required-Basel III Ratio | 0.07 | 0.07
Tier 1 (Core) Capital to adjusted total assets, Minimum Capital Required-Basel III Ratio | 0.04 | 0.04

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