The accretion period for trust preferred capital securities.

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Amount of addition (reduction) to the amount at which an asset could be incurred (settled) in a current transaction between willing parties.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

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Face (par) amount of debt instrument at time of issuance.

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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.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Amount of hedged item in hedging relationship. Excludes hedged asset or liability.

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Fixed interest rate related to the interest rate derivative.

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For an unclassified balance sheet, amounts due from parties associated with the reporting entity as evidenced by a written promise to pay.

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Number of interest rate derivative instruments held by the entity at the reporting date.

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Amount of consideration received by subsidiary or equity investee in exchange for shares of stock issued or sold. Includes amount of cash received, fair value of noncash assets received, and fair value of liabilities assumed by the investor.

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Number of shares that have been repurchased and retired during the period.

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Borrowings- Statutory Trusts (Details)						1 Months Ended	12 Months Ended
Borrowings- Statutory Trusts (Details)	Oct. 01, 2013 USD ($)	Dec. 14, 2007 USD ($)	Jul. 27, 2005 shares	Jul. 21, 2005 USD ($)	Dec. 17, 2003 USD ($)	Jul. 31, 2005 shares	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($) derivative
Long-term borrowings
Shares repurchased \| shares			427,186			427,186
December 2019 C&F Financial Statutory Trust II Interest Rate Swap
Long-term borrowings
Derivative, Amount of Hedged Item							$ 10,000,000
Interest rate (as a percent)							4.82%
December 2019 CVBK Interest Rate Swap
Long-term borrowings
Derivative, Amount of Hedged Item							$ 5,000,000
Interest rate (as a percent)							4.54%
September 2015 Interest Rate Swaps
Long-term borrowings
Number of Interest Rate Derivatives Held \| derivative								1
CF Financial Statutory Trust II
Long-term borrowings
Stock issued for cash		$ 310,000
Principal asset of Trust, notes receivable from reporting entity							$ 10,310,000
C&F Financial Statutory Trust I
Long-term borrowings
Debt Instrument, Face Amount				$ 10,000,000
Stock issued for cash				310,000
Principal asset of Trust, notes receivable from reporting entity							10,310,000
CVBK Trust I
Long-term borrowings
Stock issued for cash					$ 155,000
Principal asset of Trust, notes receivable from reporting entity							5,160,000
Trust Preferred Securities Subject to Mandatory Redemption
Long-term borrowings
Debt Instrument, Face Amount		10,000,000		$ 10,000,000
Trust Preferred Securities Subject to Mandatory Redemption \| CF Financial Statutory Trust II
Long-term borrowings
Debt Instrument, Face Amount		$ 10,000,000
Debt Instrument, Maturity Date		Dec. 01, 2037
Trust Preferred Securities Subject to Mandatory Redemption \| CF Financial Statutory Trust II \| LIBOR
Long-term borrowings
Variable rate basis		three-month LIBOR
Variable rate, basis spread (as a percent)		3.15%
Trust Preferred Securities Subject to Mandatory Redemption \| C&F Financial Statutory Trust I
Long-term borrowings
Debt Instrument, Maturity Date				Sep. 01, 2035
Trust Preferred Securities Subject to Mandatory Redemption \| C&F Financial Statutory Trust I \| LIBOR
Long-term borrowings
Variable rate basis				three-month LIBOR
Variable rate, basis spread (as a percent)				1.57%
Trust Preferred Securities Subject to Mandatory Redemption \| CVBK Trust I
Long-term borrowings
Debt Instrument, Face Amount					$ 5,000,000
Debt Instrument, Maturity Date					Dec. 01, 2033
Fair value adjustment	$ 716,000						$ 530,000
Capital Securities, Accretion Period							20 years
Trust Preferred Securities Subject to Mandatory Redemption \| CVBK Trust I \| LIBOR
Long-term borrowings
Variable rate basis					three-month LIBOR
Variable rate, basis spread (as a percent)					2.85%
Trust Preferred Capital Securities Tranche One \| September 2015 Interest Rate Swaps
Long-term borrowings
Derivative, Amount of Hedged Item								$ 10,000,000
Interest rate (as a percent)								3.44%