Summary of Significant Accounting Policies - Nature of Operations (Details)	3 Months Ended
Mar. 31, 2017 USD ($) subsidiary
ASU 2016-09 \| Scenario Adjustment
Nature of Operations
Excess tax benefit \| $	$ 60,000
C&F Bank
Nature of Operations
Number of wholly owned subsidiaries	5
CVB Title Services, Inc.
Nature of Operations
Number of insurance-related limited liability companies in which an ownership interest is held	2

Amount of cash outflow for realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 20
-Section 55
-Paragraph 24
-URI http://asc.fasb.org/extlink&oid=65896087&loc=d3e11374-113907

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration