Regulatory Capital Matters (Actual And Required Capital Amounts And Ratios Of CFBank) (Details) $ in Thousands	Jun. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Capital to risk weighted assets, Actual Amount	$ 203,915	$ 193,294
Tier 1 (Core) Capital to risk weighted assets, Actual Amount	187,048	176,828
Common equity tier 1 capital to risk-weighted assets, Actual Amount	187,048	176,828
Tier 1 (Core) Capital to adjusted total assets (Leverage ratio), Actual Amount	$ 187,048	$ 176,828
Total Capital to risk weighted assets, Actual Ratio	0.1324	0.1274
Tier 1 (Core) Capital to risk weighted assets, Actual Ratio	0.1215	0.1165
Common equity tier 1 capital to risk-weighted assets, Actual Ratio	0.1215	0.1165
Tier 1 (Core) Capital to adjusted total assets, Actual Ratio	0.0982	0.0989
Total Capital to risk weighted assets, To Be Well Capitalized Under Applicable Regulatory Capital Standards Amount	$ 153,994	$ 151,775
Tier 1 (Core) Capital to risk weighted assets, To Be Well Capitalized Under Applicable Regulatory Capital Standards Amount	123,195	121,420
Common equity tier 1 capital to risk-weighted assets, To Be Well Capitalized Under Applicable Regulatory Capital Standards Amount	100,096	98,654
Tier 1 (Core) Capital to adjusted total assets, To Be Well Capitalized Under Applicable Regulatory Capital Standards Amount	$ 95,221	$ 89,377
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	0.0650	0.0650
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 Amount	$ 161,693	$ 159,364
Tier 1 (Core) Capital to risk weighted assets, Minimum Capital Required-Basel III Amount	130,895	129,009
Common equity tier 1 capital to risk-weighted assets, Minimum Capital Required-Basel III Amount	107,796	106,243
Tier 1 (Core) Capital to adjusted total assets, Minimum Capital Required-Basel III Amount	$ 76,176	$ 71,502
Total Capital to risk weighted assets, Minimum Capital Required-Basel III Ratio	0.1050	0.1050
Tier 1 (Core) Capital to risk weighted assets, Minimum Capital Required-Basel III Ratio	0.0850	0.0850
Common equity tier 1 capital to risk-weighted assets, Minimum Capital Required-Basel III Ratio	0.0700	0.0700
Tier 1 (Core) Capital to adjusted total assets, Minimum Capital Required-Basel III Ratio	0.0400	0.0400