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Employee Benefit Plans - Defined Contribution Plans (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined contribution plans
Minimum age	18 years
Amounts charged to expense	$ 2,030,000.00	$ 2,090,000.00	$ 1,520,000
Postretirement benefit plan | Chief Executive Officer
Defined contribution plans
Amounts charged to expense	15,000	0	0
Nonqualified Executive Plan | Profit-Sharing Plan
Defined contribution plans
Amounts charged to expense	$ 296,000	$ 465,000	$ 294,000
Cash Balance Plan | C&F Bank
Defined contribution plans
Threshold monthly interest credits based on the yield under the benefit plan	3.00%
Minimum age	21 years
Basis points added to 30-year Treasuries yield to compute interest credit (as a percent)	1.50%

X

- Definition

Percentage points added to the reference rate to compute the interest credited to each participant account in the defined benefit plan.

+ References

No definition available.

+ Details

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- Definition

The minimum age for eligibility to participate in the defined benefit plan.

+ References

No definition available.

+ Details

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- Definition

Threshold monthly interest credits based on the yield under the benefit plan.

+ References

No definition available.

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- Definition

The minimum age for eligibility to participate in the defined contribution plan.

+ References

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- Definition

Amount of cost for defined contribution plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

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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.

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