XML 82 R76.htm IDEA: XBRL DOCUMENT
v3.25.3

Regulatory Capital Matters Regulatory Capital Matters (Actual And Required Capital Amounts And Ratios Of CFBank) (Parenthetical) (Details) | Sep. 30, 2025 | Dec. 31, 2024 | Jan. 01, 2019
--- | --- | --- | ---
Regulatory Capital Matters [Abstract] |  |  |
Capital conservation buffer include ratios | 0.025 | 0.025 |
Capital conservation buffer |  |  | 2.50%

X
- Definition Capital conservation buffer under Basel 3 Capital Rules. + References No definition available. + Details
Name: | cfbk_CapitalConservationBuffer
Namespace Prefix: | cfbk_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | srt_RegulatoryCapitalRequirementsAbstract
Namespace Prefix: | srt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Minimum capital conservation buffer percentage required to avoid restriction on payout amount of eligible retained income as defined by regulatory framework. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477270/942-505-50-1 + Details
Name: | us-gaap_BankingRegulationCapitalConservationBufferCapitalConservedMinimum
Namespace Prefix: | us-gaap_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant