Regulatory Capital Matters (Tables)	12 Months Ended
	Dec. 31, 2021
Regulatory Capital Matters [Abstract]
Actual And Required Capital Amounts And Ratios Of CFBank	Actual Minimum Capital Required-Basel III Fully Phased-In To Be Well Capitalized Under Applicable ‎Regulatory Capital Standards Amount Ratio Amount Ratio Amount RatioDecember 31, 2021 Total Capital to risk weighted assets$ 170,392 14.02% $ 127,588 10.50% $ 121,512 10.00%Tier 1 (Core) Capital to risk weighted assets 155,195 12.77% 103,286 8.50% 97,210 8.00%Common equity tier 1 capital to risk-weighted assets 155,195 12.77% 85,059 7.00% 78,983 6.50%Tier 1 (Core) Capital to adjusted total assets (Leverage ratio) 155,195 11.29% 54,984 4.00% 68,730 5.00% Actual Minimum Capital Required-Basel III Fully Phased-In To Be Well Capitalized Under Applicable ‎Regulatory Capital Standards Amount Ratio Amount Ratio Amount RatioDecember 31, 2020 Total Capital to risk weighted assets$ 136,683  14.31% $ 100,298  10.50% $ 95,522  10.00%Tier 1 (Core) Capital to risk weighted assets 124,678  13.05% 81,194  8.50% 76,418  8.00%Common equity tier 1 capital to risk-weighted assets 124,678  13.05% 66,866  7.00% 62,089  6.50%Tier 1 (Core) Capital to adjusted total assets (Leverage ratio) 124,678  9.74% 51,187  4.00% 63,984  5.00%