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Regulatory Order Considerations and Management's Plans - Brokered Deposit Maturities (Detail) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012
--- | ---
December 31, 2013 | $ 16,851
December 31, 2014 | 5,199
December 31, 2015 | 9,422
December 31, 2016 | 623
Brokered Deposit | $ 32,095

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- Definition Brokered deposit maturities year four. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Brokered deposit maturities year one. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Brokered deposit maturities year three. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Brokered deposit maturities year two. + References No definition available. + Details
Name: | cfbk_BrokeredDepositMaturitiesYearTwo
Namespace Prefix: | cfbk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Brokered Deposits + References No definition available. + Details
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Namespace Prefix: | cfbk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant