XML 62 R52.htm IDEA: XBRL DOCUMENT
v3.24.1.1.u2

Loans And Leases (Recorded Investment In Loans By Risk Category And Class Of Loans) (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Mar. 31, 2024
Financing Receivable, Recorded Investment [Line Items] |  |
2024 | $ 217,575 | $ 32,513
2023 | 394,333 | 217,787
2022 | 565,647 | 394,852
2021 | 137,812 | 564,914
2020 | 68,814 | 135,278
Prior | 112,677 | 178,744
Revolving loans amortized cost basis | 210,582 | 185,155
Revolving loans converted to term | 3,558 | 4,686
Total Loans | 1,710,998 | 1,713,929
Current period gross charge-offs: |  |
2023 | 564 |
2022 | 211 |
Prior | 3 |
Total Loans | 778 |
Commercial Portfolio Segment [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2024 | 32,965 | 5,747
2023 | 87,265 | 32,481
2022 | 100,641 | 86,106
2021 | 45,670 | 97,622
2020 | 3,273 | 44,919
Prior | 9,888 | 12,808
Revolving loans amortized cost basis | 159,115 | 148,882
Revolving loans converted to term | 1,078 | 1,984
Total Loans | 439,895 | 430,549
Commercial Portfolio Segment [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2024 | 32,965 | 5,747
2023 | 86,433 | 32,481
2022 | 90,297 | 85,273
2021 | 45,670 | 87,262
2020 | 3,189 | 44,919
Prior | 9,888 | 12,724
Revolving loans amortized cost basis | 159,065 | 148,832
Revolving loans converted to term | 1,078 | 484
Total Loans | 428,585 | 417,722
Commercial Portfolio Segment [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2022 | 2,807 |
2021 |  | 2,800
2020 | 84 |
Prior |  | 84
Total Loans | 2,891 | 2,884
Commercial Portfolio Segment [Member] | Substandard [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2023 | 384 |
2022 | 7,537 | 385
2021 |  | 7,560
Revolving loans amortized cost basis | 50 | 50
Revolving loans converted to term |  | 1,500
Total Loans | 7,971 | 9,495
Commercial Portfolio Segment [Member] | Doubtful [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2023 | 448 |
2022 |  | 448
Total Loans | 448 | 448
Real Estate Portfolio Segment [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2024 | 184,610 | 26,766
2023 | 307,068 | 185,306
2022 | 465,006 | 308,746
2021 | 92,130 | 467,292
2020 | 65,541 | 90,349
Prior | 102,573 | 165,725
Revolving loans amortized cost basis | 15,822 |
Total Loans | 1,232,750 | 1,244,184
Current period gross charge-offs: |  |
2023 | 564 |
2022 | 211 |
Total Loans | 775 |
Real Estate Portfolio Segment [Member] | Single-Family Residential [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2024 | 42,655 | 3,575
2023 | 131,416 | 40,235
2022 | 231,379 | 129,976
2021 | 45,785 | 230,204
2020 | 9,584 | 45,000
Prior | 17,405 | 26,191
Total Loans | 478,224 | 475,181
Real Estate Portfolio Segment [Member] | Single-Family Residential [Member] | Performing [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2024 | 42,655 | 3,575
2023 | 131,416 | 40,235
2022 | 231,379 | 129,604
2021 | 45,785 | 230,204
2020 | 9,584 | 45,000
Prior | 16,778 | 25,568
Total Loans | 477,597 | 474,186
Real Estate Portfolio Segment [Member] | Single-Family Residential [Member] | Nonperforming [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2022 |  | 372
Prior | 627 | 623
Total Loans | 627 | 995
Real Estate Portfolio Segment [Member] | Multi-Family Residential [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2024 | 24,839 |
2023 | 8,776 | 24,833
2022 | 53,815 | 8,750
2021 | 7,311 | 52,209
2020 | 15,772 | 7,283
Prior | 20,265 | 35,704
Total Loans | 130,778 | 128,779
Real Estate Portfolio Segment [Member] | Multi-Family Residential [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2024 | 24,839 |
2023 | 8,776 | 24,833
2022 | 53,815 | 8,750
2021 | 7,311 | 52,209
2020 | 15,772 | 7,283
Prior | 20,265 | 35,704
Total Loans | 130,778 | 128,779
Real Estate Portfolio Segment [Member] | Commercial [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total Loans | 433,026 | 461,826
Real Estate Portfolio Segment [Member] | Non-Owner Occupied [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2024 | 57,092 | 11,136
2023 | 27,068 | 54,975
2022 | 61,990 | 33,976
2021 | 15,085 | 69,310
2020 | 20,606 | 14,866
Prior | 45,725 | 65,425
Revolving loans amortized cost basis | 982 |
Total Loans | 228,548 | 249,688
Real Estate Portfolio Segment [Member] | Non-Owner Occupied [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2024 | 57,092 | 11,136
2023 | 27,068 | 54,975
2022 | 61,990 | 33,976
2021 | 15,085 | 69,310
2020 | 20,101 | 14,866
Prior | 45,725 | 64,920
Revolving loans amortized cost basis | 982 |
Total Loans | 228,043 | 249,183
Real Estate Portfolio Segment [Member] | Non-Owner Occupied [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2020 | 505 |
Prior |  | 505
Total Loans | 505 | 505
Real Estate Portfolio Segment [Member] | Owner Occupied [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2024 | 20,353 | 3,488
2023 | 55,169 | 22,404
2022 | 50,210 | 63,456
2021 | 19,775 | 49,091
2020 | 19,430 | 19,570
Prior | 18,768 | 37,849
Revolving loans amortized cost basis | 68 |
Total Loans | 183,773 | 195,858
Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2024 | 20,353 | 3,488
2023 | 55,169 | 22,404
2022 | 50,210 | 63,456
2021 | 19,775 | 49,091
2020 | 18,751 | 19,570
Prior | 18,768 | 37,170
Revolving loans amortized cost basis | 68 |
Total Loans | 183,094 | 195,179
Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2020 | 679 |
Prior |  | 679
Total Loans | 679 | 679
Real Estate Portfolio Segment [Member] | Land [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2024 | 7,932 | 2,791
2023 | 6,037 | 5,646
2022 | 6,177 | 1,564
2021 |  | 5,723
2020 | 149 |
Prior | 410 | 556
Total Loans | 20,705 | 16,280
Real Estate Portfolio Segment [Member] | Land [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2024 | 7,932 | 2,791
2023 | 6,037 | 5,646
2022 | 6,177 | 1,564
2021 |  | 5,723
2020 | 149 |
Prior | 410 | 556
Total Loans | 20,705 | 16,280
Real Estate Portfolio Segment [Member] | Construction [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2024 | 31,739 | 5,776
2023 | 78,602 | 37,213
2022 | 61,435 | 71,024
2021 | 4,174 | 60,755
2020 |  | 3,630
Revolving loans amortized cost basis | 14,772 |
Total Loans | 190,722 | 178,398
Real Estate Portfolio Segment [Member] | Construction [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2024 | 31,739 | 5,776
2023 | 78,602 | 37,213
2022 | 61,435 | 71,024
2021 | 4,174 | 60,755
2020 |  | 3,630
Revolving loans amortized cost basis | 14,772 |
Total Loans | 190,722 | 178,398
Consumer Portfolio Segment [Member] | Home Equity Lines Of Credit [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Revolving loans amortized cost basis | 33,510 | 33,377
Revolving loans converted to term | 2,450 | 2,702
Total Loans | 35,960 | 36,079
Consumer Portfolio Segment [Member] | Home Equity Lines Of Credit [Member] | Performing [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Revolving loans amortized cost basis | 33,510 | 33,377
Revolving loans converted to term | 2,433 | 2,686
Total Loans | 35,943 | 36,063
Consumer Portfolio Segment [Member] | Home Equity Lines Of Credit [Member] | Nonperforming [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Revolving loans converted to term | 17 | 16
Total Loans | 17 | 16
Consumer Portfolio Segment [Member] | Other [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2021 | 12 |
2020 |  | 10
Prior | 216 | 211
Revolving loans amortized cost basis | 2,135 | 2,896
Revolving loans converted to term | 30 |
Total Loans | 2,393 | 3,117
Current period gross charge-offs: |  |
Prior | 3 |
Total Loans | 3 |
Consumer Portfolio Segment [Member] | Other [Member] | Performing [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2021 | 12 |
2020 |  | 10
Prior | 216 | 211
Revolving loans amortized cost basis | 2,135 | 2,615
Total Loans | 2,363 | 2,836
Consumer Portfolio Segment [Member] | Other [Member] | Nonperforming [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Revolving loans amortized cost basis |  | 281
Revolving loans converted to term | 30 |
Total Loans | $ 30 | $ 281

X
- Definition Financing Receivable, Allowance for Credit Loss, Writeoff + References No definition available. + Details
Name: | cfbk_FinancingReceivableAllowanceForCreditLossWriteoff
Namespace Prefix: | cfbk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Definition Amortized cost of financing receivable originated more than five years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of financing receivable originated four years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of financing receivable originated in current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableOriginatedInCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of financing receivable originated in fiscal year prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of writeoff of financing receivable originated more than five years before current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableOriginatedMoreThanFiveYearsBeforeCurrentFiscalYearWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amortized cost of financing receivable originated three years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of financing receivable originated two years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-5 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amortized cost of financing receivable that can be withdrawn, repaid, and redrawn. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableRevolving
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of revolving financing receivable converted to term loan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6A + Details
Name: | us-gaap_FinancingReceivableRevolvingConvertedToTermLoan
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of writeoff of financing receivable originated two years before current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of writeoff of financing receivable originated in fiscal year before current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 80 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-80 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479344/326-20-45-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (1) -Publisher SEC Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (2) -Publisher SEC Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef -Name Regulation S-K (SK) -Number 229 -Section 1404 -Paragraph (a) -Publisher SEC Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 14 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-14 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 7A -SubTopic 10 -Topic 310 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-7A Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-5 + Details
Name: | us-gaap_NotesReceivableGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_PassMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SpecialMentionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SubstandardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_DoubtfulMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=cfbk_RealEstatePortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cfbk_ResidentialSingleFamilyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentPerformanceStatusAxis=us-gaap_PerformingFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentPerformanceStatusAxis=us-gaap_NonperformingFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cfbk_ResidentialMultiFamilyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cfbk_CommercialLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cfbk_NonOwnerOccupiedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cfbk_OwnerOccupiedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cfbk_LandLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConstructionLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_HomeEquityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cfbk_OtherFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |