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    <Log type="Info">'Monetary' elements on report '064 - Disclosure - Note 5 - Loans and Related Allowance for Loan Losses (Details) - Major Classifications of Loans Summarized by Individually Evaluated for Impairment and Collectively Evaluated for Potential Losses' had a mix of different decimal attribute values.</Log>
    <Log type="Info">'Monetary' elements on report '068 - Disclosure - Note 7 - Core Deposit Intangible (Details)' had a mix of different decimal attribute values.</Log>
    <Log type="Info">'Monetary' elements on report '086 - Disclosure - Note 16 - Fair Value Disclosure (Details)' had a mix of different decimal attribute values.</Log>
    <Log type="Info">Columns in Cash Flows statement 'Note 17 - Condensed Financial Statements of Parent Company (Details) - Statement of Cash Flows (USD $)' have maximum duration 365 days and at least 32 values. Shorter duration columns must have at least one fourth (8) as many values. Column '12/31/2011' is shorter (-734501 days) and has only 1 values, so it is being removed.</Log>
    <Log type="Info">Columns in Cash Flows statement 'Note 17 - Condensed Financial Statements of Parent Company (Details) - Statement of Cash Flows (USD $)' have maximum duration 365 days and at least 32 values. Shorter duration columns must have at least one fourth (8) as many values. Column '1/1/2013 - 3/31/2013' is shorter (89 days) and has only 1 values, so it is being removed.</Log>
    <Log type="Info">Columns in Cash Flows statement 'Note 17 - Condensed Financial Statements of Parent Company (Details) - Statement of Cash Flows (USD $)' have maximum duration 365 days and at least 32 values. Shorter duration columns must have at least one fourth (8) as many values. Column '4/1/2013 - 6/30/2013' is shorter (90 days) and has only 1 values, so it is being removed.</Log>
    <Log type="Info">Columns in Cash Flows statement 'Note 17 - Condensed Financial Statements of Parent Company (Details) - Statement of Cash Flows (USD $)' have maximum duration 365 days and at least 32 values. Shorter duration columns must have at least one fourth (8) as many values. Column '7/1/2013 - 9/30/2013' is shorter (91 days) and has only 1 values, so it is being removed.</Log>
    <Log type="Info">Columns in Cash Flows statement 'Note 17 - Condensed Financial Statements of Parent Company (Details) - Statement of Cash Flows (USD $)' have maximum duration 365 days and at least 32 values. Shorter duration columns must have at least one fourth (8) as many values. Column '10/1/2013 - 12/31/2013' is shorter (91 days) and has only 4 values, so it is being removed.</Log>
    <Log type="Info">Columns in Cash Flows statement 'Note 17 - Condensed Financial Statements of Parent Company (Details) - Statement of Cash Flows (USD $)' have maximum duration 365 days and at least 32 values. Shorter duration columns must have at least one fourth (8) as many values. Column '1/1/2014 - 3/31/2014' is shorter (89 days) and has only 1 values, so it is being removed.</Log>
    <Log type="Info">Columns in Cash Flows statement 'Note 17 - Condensed Financial Statements of Parent Company (Details) - Statement of Cash Flows (USD $)' have maximum duration 365 days and at least 32 values. Shorter duration columns must have at least one fourth (8) as many values. Column '4/1/2014 - 6/30/2014' is shorter (90 days) and has only 1 values, so it is being removed.</Log>
    <Log type="Info">Columns in Cash Flows statement 'Note 17 - Condensed Financial Statements of Parent Company (Details) - Statement of Cash Flows (USD $)' have maximum duration 365 days and at least 32 values. Shorter duration columns must have at least one fourth (8) as many values. Column '7/1/2014 - 9/30/2014' is shorter (91 days) and has only 1 values, so it is being removed.</Log>
    <Log type="Info">Columns in Cash Flows statement 'Note 17 - Condensed Financial Statements of Parent Company (Details) - Statement of Cash Flows (USD $)' have maximum duration 365 days and at least 32 values. Shorter duration columns must have at least one fourth (8) as many values. Column '10/1/2014 - 12/31/2014' is shorter (91 days) and has only 4 values, so it is being removed.</Log>
    <Log type="Info">'Monetary' elements on report '092 - Disclosure - Note 17 - Condensed Financial Statements of Parent Company (Details) - Statement of Cash Flows' had a mix of different decimal attribute values.</Log>
    <Log type="Info">Process Flow-Through: 001 - Statement - Consolidated Statement of Financial Condition</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'Dec. 31, 2012'</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'Dec. 31, 2011'</Log>
    <Log type="Info">Process Flow-Through: 002 - Statement - Consolidated Statement of Financial Condition (Parentheticals)</Log>
    <Log type="Info">Process Flow-Through: 003 - Statement - Consolidated Statement of Income</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Dec. 31, 2014'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Sep. 30, 2014'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Jun. 30, 2014'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Mar. 31, 2014'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Dec. 31, 2013'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Sep. 30, 2013'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Jun. 30, 2013'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Mar. 31, 2013'</Log>
    <Log type="Info">Process Flow-Through: 004 - Statement - Consolidated Statement of Comprehensive Income</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Dec. 31, 2014'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Sep. 30, 2014'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Jun. 30, 2014'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Mar. 31, 2014'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Dec. 31, 2013'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Sep. 30, 2013'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Jun. 30, 2013'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Mar. 31, 2013'</Log>
    <Log type="Info">Process Flow-Through: 005 - Statement - Consolidated Statement of Comprehensive Income (Parentheticals)</Log>
    <Log type="Info">Process Flow-Through: 007 - Statement - Consolidated Statement of Changes in Stockholders’ Equity (Parentheticals)</Log>
    <Log type="Info">Process Flow-Through: 008 - Statement - Consolidated Statement of Cash Flows</Log>
  </Logs>
  <InputFiles>
    <File>cbfv-20141231.xml</File>
    <File>cbfv-20141231.xsd</File>
    <File>cbfv-20141231_cal.xml</File>
    <File>cbfv-20141231_def.xml</File>
    <File>cbfv-20141231_lab.xml</File>
    <File>cbfv-20141231_pre.xml</File>
  </InputFiles>
  <SupplementalFiles />
  <BaseTaxonomies />
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
