Regulatory Capital Matters (Actual And Required Capital Amounts And Ratios Of CFBank) (Details) $ in Thousands	Jun. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Regulatory Capital Matters [Abstract]
Total Capital to risk weighted assets, Actual Amount	$ 176,527	$ 170,392
Tier 1 (Core) Capital to risk weighted assets, Actual Amount	160,618	155,195
Common equity tier 1 capital to risk-weighted assets, Actual Amount	160,618	155,195
Tier 1 (Core) Capital to adjusted total assets (Leverage ratio), Actual Amount	$ 160,618	$ 155,195
Total Capital to risk weighted assets, Actual Ratio	0.1333	0.1402
Tier 1 (Core) Capital to risk weighted assets, Actual Ratio	0.1213	0.1277
Common equity tier 1 capital to risk-weighted assets, Actual Ratio	0.1213	0.1277
Tier 1 (Core) Capital to adjusted total assets, Actual Ratio	0.1009	0.1129
Total Capital to risk weighted assets, Minimum Capital Required-Basel III Fully Phased-In Amount	$ 139,008	$ 127,588
Tier 1 (Core) Capital to risk weighted assets, Minimum Capital Required-Basel III Fully Phased-In Amount	112,530	103,286
Common equity tier 1 capital to risk-weighted assets, Minimum Capital Required-Basel III Fully Phased-In Amount	92,672	85,059
Tier 1 (Core) Capital to adjusted total assets, Minimum Capital Required-Basel III Fully Phased-In Amount	$ 63,663	$ 54,984
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	0.0700	0.0700
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	$ 132,388	$ 121,512
Tier 1 (Core) Capital to risk weighted assets, To Be Well Capitalized Under Applicable Regulatory Capital Standards Amount	105,911	97,210
Common equity tier 1 capital to risk-weighted assets, To Be Well Capitalized Under Applicable Regulatory Capital Standards Amount	86,052	78,983
Tier 1 (Core) Capital to adjusted total assets, To Be Well Capitalized Under Applicable Regulatory Capital Standards Amount	$ 79,578	$ 68,730
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