Employee Benefit Plans - Defined Benefit Plans - Components of Net Periodic Pension Costs (Details) - USD ($) $ in Thousands	12 Months Ended			36 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2023
Components of net periodic benefit cost
Net periodic benefit cost	$ 925	$ 639	$ 2,131
C&F Bank | Cash Balance Plan
Components of net periodic benefit cost
Service cost, included in salaries and employee benefits	1,377	1,837	1,970
Interest cost	728	$ 492	$ 458
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]		Other Noninterest Expense	Other Noninterest Expense	Other Noninterest Expense
Expected return on plan assets	(1,284)	$ (1,660)	$ (1,733)
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]		Other Noninterest Expense	Other Noninterest Expense	Other Noninterest Expense
Amortization of prior service credit	(67)	$ (68)	$ (68)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Amortization of Prior Service Cost (Credit), Statement of Income or Comprehensive Income [Extensible Enumeration]		Other Noninterest Expense	Other Noninterest Expense	Other Noninterest Expense
Pension settlement charges			$ 1,261
Recognized net actuarial losses	171	$ 38	$ 243
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Amortization of Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]		Other Noninterest Expense	Other Noninterest Expense	Other Noninterest Expense
Other components of net periodic benefit cost, included in other noninterest expense	(452)	$ (1,198)	$ 161
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]		Other Noninterest Expense	Other Noninterest Expense	Other Noninterest Expense
Net periodic benefit cost	$ 925	$ 639	$ 2,131