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Regulatory Capital Matters (Actual And Required Capital Amounts And Ratios Of CFBank) (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
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Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Total Capital to risk weighted assets, Actual Amount | $ 48,271 | $ 45,118
Tier 1 (Core) Capital to risk weighted assets, Actual Amount | 43,179 | 40,556
Common equity tier 1 capital to risk-weighted assets, Actual Amount | 43,179 | 40,556
Tier 1 (Core) Capital to adjusted total assets, Actual Amount | $ 43,179 | $ 40,556
Total Capital to risk weighted assets, Actual Ratio | 11.91% | 12.46%
Tier 1 (Core) Capital to risk weighted assets, Actual Ratio | 10.65% | 11.20%
Common equity tier 1 capital to risk-weighted assets, Actual Ratio | 10.65% | 11.20%
Tier 1 (Core) Capital to adjusted total assets, Actual Ratio | 9.37% | 9.66%
Capital Required to be Well Capitalized | $ 40,532 | $ 36,218
Tier One Risk Based Capital Required to be Well Capitalized | 32,426 | 28,974
Common equity tier 1 capital to risk-weighted assets, To Be Well Capitalized Under Applicable Regulatory Action Regulations Amount | 26,346 | 23,542
Tier One Leverage Capital Required to be Well Capitalized | $ 23,040 | $ 20,991
Capital Required to be Well Capitalized to Risk Weighted Assets | 10.00% | 10.00%
Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets | 8.00% | 8.00%
Common equity tier 1 capital to risk-weighted assets, To Be Well Capitalized Under Applicable Regulatory Action Regulations Ratio | 6.50% | 6.50%
Tier One Leverage Capital Required to be Well Capitalized to Average Assets | 5.00% | 5.00%
Basel III Phase-In Schedule [Member] |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Total Capital to risk weighted assets, For Capital Adequacy Purposes Amount | $ 37,492 | $ 31,256
Tier 1 (Core) Capital to risk weighted assets, For Capital Adequacy Purposes Amount | 29,386 | 24,013
Common equity tier 1 capital to risk-weighted assets, For Capital Adequacy Purposes Amount | 23,306 | 18,580
Tier 1 (Core) Capital to adjusted total assets, For Capital Adequacy Purposes Amount | $ 18,432 | $ 16,792
Total Capital to risk weighted assets, For Capital Adequacy Purposes Ratio | 9.25% | 8.63%
Tier 1 (Core) Capital to risk weighted assets, For Capital Adequacy Purposes Ratio | 7.25% | 6.63%
Common equity tier 1 capital to risk-weighted assets, For Capital Adequacy Purposes Ratio | 5.75% | 5.13%
Tier 1 (Core) Capital to adjusted total assets, For Capital Adequacy Purposes Ratio | 4.00% | 4.00%
Basel III Fully Phased-In [Member] |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Total Capital to risk weighted assets, For Capital Adequacy Purposes Amount | $ 42,559 | $ 38,029
Tier 1 (Core) Capital to risk weighted assets, For Capital Adequacy Purposes Amount | 34,452 | 30,785
Common equity tier 1 capital to risk-weighted assets, For Capital Adequacy Purposes Amount | 28,372 | 25,353
Tier 1 (Core) Capital to adjusted total assets, For Capital Adequacy Purposes Amount | $ 18,432 | $ 16,792
Total Capital to risk weighted assets, For Capital Adequacy Purposes Ratio | 10.50% | 10.50%
Tier 1 (Core) Capital to risk weighted assets, For Capital Adequacy Purposes Ratio | 8.50% | 8.50%
Common equity tier 1 capital to risk-weighted assets, For Capital Adequacy Purposes Ratio | 7.00% | 7.00%
Tier 1 (Core) Capital to adjusted total assets, For Capital Adequacy Purposes Ratio | 4.00% | 4.00%

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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=84167132&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=84167132&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=84167132&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=84167132&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 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958568-112826 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)(2) -URI http://asc.fasb.org/extlink&oid=84167132&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 1B -URI http://asc.fasb.org/extlink&oid=84167132&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=84167132&loc=SL5958568-112826 + Details
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- Definition The minimum amount of Tier 1 Leverage Capital for capital adequacy purposes divided by average assets as defined in the regulations. + 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=84167132&loc=SL5958568-112826 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)(2) -URI http://asc.fasb.org/extlink&oid=84167132&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 1B -URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958570-112826 + 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 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958568-112826 Reference 2: 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=84167132&loc=SL5958570-112826 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=84167132&loc=d3e65071-112826 + 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=84167132&loc=SL5958568-112826 + Details
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