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Regulatory Capital Matters (Actual And Required Capital Amounts And Ratios Of CFBank) (Details) (USD $) In Thousands, unless otherwise specified | Mar. 31, 2015 | Dec. 31, 2014
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Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Total Capital to risk weighted assets, Actual Amount | $ 38,540 us-gaap_Capital | $ 37,898 us-gaap_Capital
Tier 1 (Core) Capital to risk weighted assets, Actual Amount | 34,933 us-gaap_TierOneRiskBasedCapital | 34,520 us-gaap_TierOneRiskBasedCapital
Tier 1 (Core) Capital to adjusted total assets, Actual Amount | 34,933 us-gaap_TierOneLeverageCapital | 34,520 us-gaap_TierOneLeverageCapital
Common equity Tier 1 (Core) Capital to risk weighted assets, Actual Amount | 34,933 cfbk_CommonEquityTierOneRiskBasedCapital |
Total Capital to risk weighted assets, Actual Ratio | 13.49%us-gaap_CapitalToRiskWeightedAssets | 14.18%us-gaap_CapitalToRiskWeightedAssets
Tier 1 (Core) Capital to risk weighted assets, Actual Ratio | 12.23%us-gaap_TierOneRiskBasedCapitalToRiskWeightedAssets | 12.92%us-gaap_TierOneRiskBasedCapitalToRiskWeightedAssets
Tier 1 (Core) Capital to adjusted total assets, Actual Ratio | 11.17%us-gaap_TierOneLeverageCapitalToAverageAssets | 11.03%us-gaap_TierOneLeverageCapitalToAverageAssets
Common equity Tier 1 (Core) Capital to risk weighted assets, Actual Ratio | 12.23%cfbk_CommonEquityTierOneRiskBasedCapitalToRiskWeightedAssets |
Total Capital to risk weighted assets, For Capital Adequacy Purposes Amount | 22,857 us-gaap_CapitalRequiredForCapitalAdequacy | 21,379 us-gaap_CapitalRequiredForCapitalAdequacy
Tier 1 (Core) Capital to risk weighted assets, For Capital Adequacy Purposes Amount | 17,143 us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacy | 10,690 us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacy
Tier 1 (Core) Capital to adjusted total assets, For Capital Adequacy Purposes Amount | 12,511 us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacy | 12,515 us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacy
Comment equity Tier 1 (Core) Capital to risk weighted assets, For Capital Adequacy Purposes Amount | 12,857 cfbk_CommonEquityTierOneRiskBasedCapitalRequiredForCapitalAdequacy |
Total Capital to risk weighted assets, For Capital Adequacy Purposes Ratio | 8.00%us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets | 8.00%us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets
Tier 1 (Core) Capital to risk weighted assets, For Capital Adequacy Purposes Ratio | 6.00%us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets | 4.00%us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets
Tier 1 (Core) Capital to adjusted total assets, For Capital Adequacy Purposes Ratio | 4.00%us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets | 4.00%us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets
Common equityTier 1 (Core) Capital to risk weighted assets, For Capital Adequacy Purposes Ratio | 4.50%cfbk_CommonEquityTierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets |
Capital Required to be Well Capitalized | 28,572 us-gaap_CapitalRequiredToBeWellCapitalized | 26,724 us-gaap_CapitalRequiredToBeWellCapitalized
Tier One Risk Based Capital Required to be Well Capitalized | 22,857 us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalized | 16,034 us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalized
Tier One Leverage Capital Required to be Well Capitalized | 15,639 us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalized | 15,643 us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalized
Common equity Tier One Risk Based Capital Required to be Well Capitalized | 18,572 cfbk_CommonEquityTierOneRiskBasedCapitalRequiredToBeWellCapitalized |
Capital Required to be Well Capitalized to Risk Weighted Assets | 10.00%us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets | 10.00%us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets
Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets | 8.00%us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets | 6.00%us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets
Tier One Leverage Capital Required to be Well Capitalized to Average Assets | 5.00%us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets | 5.00%us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets
Common equity Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets | 6.50%cfbk_CommonEquityTierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets |
CF Bank [Member] |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Capital Required to be Well Capitalized | 34,286 us-gaap_CapitalRequiredToBeWellCapitalized / dei_LegalEntityAxis = cfbk_CfBankMember | 32,069 us-gaap_CapitalRequiredToBeWellCapitalized / dei_LegalEntityAxis = cfbk_CfBankMember
Tier One Leverage Capital Required to be Well Capitalized | $ 25,023 us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalized / dei_LegalEntityAxis = cfbk_CfBankMember |
Capital Required to be Well Capitalized to Risk Weighted Assets | 12.00%us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets / dei_LegalEntityAxis = cfbk_CfBankMember | 12.00%us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets / dei_LegalEntityAxis = cfbk_CfBankMember
Tier One Leverage Capital Required to be Well Capitalized to Average Assets | 8.00%us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets / dei_LegalEntityAxis = cfbk_CfBankMember | 8.00%us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets / dei_LegalEntityAxis = cfbk_CfBankMember

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- Definition The amount of total capital as defined in the regulations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6490092&loc=d3e47304-110998 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=35709795&loc=d3e65071-112826 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=35709795&loc=d3e65071-112826 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6490092&loc=d3e47080-110998 + Details
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- Definition The minimum amount of Total Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=35709795&loc=d3e65071-112826 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958568-112826 + Details
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- Definition The minimum Total risk based capital ratio (total capital divided by risk weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=35709795&loc=d3e65071-112826 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958568-112826 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958570-112826 + Details
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- Definition The amount of Total Capital required to be categorized as well as capitalized under the regulatory framework for prompt corrective action. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958568-112826 + Details
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- Definition Tier 1 Leverage Capital as defined in the regulations. Also called Core Capital. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=35709795&loc=d3e65071-112826 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958568-112826 + Details
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- Definition The minimum amount of Tier 1 Risk Based Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=35709795&loc=d3e65071-112826 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958568-112826 + Details
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- Definition The minimum Tier One Capital Ratio (Tier one capital divided by risk-weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=35709795&loc=d3e65071-112826 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958568-112826 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958570-112826 + Details
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- Definition The Tier 1 capital ratio (Tier 1 capital divided by risk weighted assets) required to be categorized as "well capitalized" under the regulatory framework for prompt corrective action. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958568-112826 + Details
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