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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, 2022
Dec. 31, 2021
Dec. 31, 2020
Change in benefit obligation      
Actuarial gain $ 5,190 $ 1,250  
Weighted-average assumptions for benefit obligation at valuation date      
Accumulated benefit obligation 15,270 20,250  
C&F Bank | Cash Balance Plan      
Change in benefit obligation      
Projected benefit obligation, beginning 20,247 24,643  
Service cost 1,837 1,970 $ 1,603
Interest cost 492 458 551
Actuarial gain 5,190 1,248  
Benefits paid (2,119) (210)  
Settlements paid   (5,366)  
Projected benefit obligation, ending 15,267 20,247 24,643
Change in plan assets      
Fair value of plan assets, beginning 23,470 26,287  
Actual return on plan assets (4,995) 2,759  
Employer contributions 2,000    
Benefits paid (2,119) (210)  
Settlements paid   (5,366)  
Fair value of plan assets, ending 18,356 23,470 $ 26,287
Funded status 3,089 3,223  
Amounts recognized as an other asset 3,089 3,223  
Amounts recognized in accumulated other comprehensive loss      
Net loss 4,397 2,970  
Prior service credits (302) (370)  
Deferred taxes (859) (545)  
Total recognized in accumulated other comprehensive loss $ 3,236 $ 2,055  
Weighted-average assumptions for benefit obligation at valuation date      
Discount rate 4.90% 2.50%  
Rate of compensation increase 3.00% 3.00%  
Interest crediting rate 5.00% 5.00%  
Settlements paid   $ 5,366