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Summary of Significant Accounting Policies - Nature of Operations and Derivative Financial Instruments (Details)	Sep. 30, 2024 subsidiary
Nature of Operations
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other assets.
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other liabilities
C&F Bank
Nature of Operations
Number of wholly owned subsidiaries	5
C&F Mortgage | C&F Select LLC
Nature of Operations
Interest owned (as a percent)	51.00%

X

- Definition

The number of subsidiaries owned by the company.

+ References

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+ Details

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- 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

No definition available.

+ Details

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- Definition

Indicates line item in statement of financial position that includes derivative asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4A
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A

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- Definition

Indicates line item in statement of financial position that includes derivative liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4A
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

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- Details

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