Regulatory Requirements and Restrictions - Trust Preferred Securities (Details)		1 Months Ended
	Jul. 27, 2005 $ / shares shares	Jul. 31, 2005 shares	Dec. 31, 2018 USD ($)	Dec. 31, 2017	Dec. 31, 2016	Dec. 14, 2007 USD ($)	Jul. 21, 2005 USD ($)	Dec. 17, 2003 USD ($)
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Capital conservation buffer requirement			1.875%	1.25%	0.625%
Stock Repurchased and Retired During Period, Shares | shares	427,186	427,186
Share Price | $ / shares	$ 41
Eligible for inclusion in Tier One Capital			$ 25,000,000
Trust Preferred Securities Subject to Mandatory Redemption
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Trust preferred securities issued						$ 10,000,000	$ 10,000,000
CF Financial Statutory Trust II | Trust Preferred Securities Subject to Mandatory Redemption
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Trust preferred securities issued						$ 10,000,000
C&F Financial Statutory Trust I
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Trust preferred securities issued							$ 10,000,000
CVBK Trust I | Trust Preferred Securities Subject to Mandatory Redemption
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Trust preferred securities issued								$ 5,000,000
The Bank
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Total capital conservation buffer exceeded			525	499
CET1 capital conservation buffer exceeded			748	722
Restriction on loans or advances as percent of capital stock			10.00%