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Employee Benefit Plans - Defined Benefit Plans - Projected Benefit Obligations, Plan Assets, Funded Status and Rate Assumptions (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Change in benefit obligation |  |  |
Actuarial (gain) loss | $ 1,250 | $ (3,000) |
Amounts recognized in accumulated other comprehensive loss |  |  |
Total recognized in accumulated other comprehensive loss | 2,055 | 4,985 |
Weighted-average assumptions for benefit obligation at valuation date |  |  |
Accumulated benefit obligation | 20,250 | 24,640 |
C&F Bank | Cash Balance Plan |  |  |
Change in benefit obligation |  |  |
Projected benefit obligation, beginning | 24,643 | 20,794 |
Service cost | 1,970 | 1,603 | $ 1,218
Interest cost | 458 | 551 | 609
Actuarial (gain) loss | 1,248 | (2,996) |
Benefits paid | (210) | (1,301) |
Settlements paid | (5,366) |  |
Projected benefit obligation, ending | 20,247 | 24,643 | 20,794
Change in plan assets |  |  |
Fair value of plan assets, beginning | 26,287 | 22,806 |
Actual return on plan assets | 2,759 | 2,782 |
Employer contributions |  | 2,000 |
Benefits paid | (210) | (1,301) |
Settlements paid | (5,366) |  |
Fair value of plan assets, ending | 23,470 | 26,287 | $ 22,806
Funded status | 3,223 | 1,644 |
Amounts recognized as an other asset | 3,223 | 1,644 |
Amounts recognized in accumulated other comprehensive loss |  |  |
Net loss | 2,970 | 6,748 |
Prior service credits | (370) | (438) |
Deferred taxes | (545) | (1,325) |
Total recognized in accumulated other comprehensive loss | $ 2,055 | $ 4,985 |
Weighted-average assumptions for benefit obligation at valuation date |  |  |
Discount rate. | 2.50% | 2.10% |
Rate of compensation increase | 3.00% | 3.00% |
Interest crediting rate | 5.00% | 5.00% |
Settlements paid | $ 5,366 |  |

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- Definition Weighted average interest crediting rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan. + References No definition available. + Details
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- Definition Amount, after tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669686-108580 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (i-k) -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669646-108580 + Details
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- Definition Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Amount, before tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669686-108580 + Details
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- Definition Amount, before tax, of accumulated other comprehensive (income) loss for cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669686-108580 + Details
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- Definition Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 + Details
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- Definition Amount of payment, which decreases benefit obligation of defined benefit plan, for irrevocable action relieving primary responsibility for benefit obligation and eliminating risk for obligation and assets used to effect settlement. Transaction constituting settlement includes, but is not limited to, making lump-sum cash payment to participant in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contract. Excludes decreases to benefit obligation for remeasurement due to settlement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(10) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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