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Commitments and Contingencies (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Probable loan loss experience on unfunded obligations [Member]
Commitments and Contingencies
Estimate of possible loss	$ 225	$ 125
Commitments to extend credit
Commitments and Contingencies
Commitments to extend credit	311,416	259,415
Undisbursed lines of credit
Commitments and Contingencies
Commitments to extend credit	$ 310,621	257,557
Undisbursed lines of credit | Minimum
Commitments and Contingencies
Commitments to extend credit, term of agreement	1 month
Undisbursed lines of credit | Maximum
Commitments and Contingencies
Commitments to extend credit, term of agreement	12 months
Undisbursed portions of construction loans
Commitments and Contingencies
Commitments to extend credit	$ 80,727	43,208
Standby letters of credit and financial guarantees
Commitments and Contingencies
Commitments to extend credit	$ 795	$ 1,858
Standby letters of credit and financial guarantees | Maximum
Commitments and Contingencies
Commitments to extend credit, term of agreement	1 year

X

- Definition

Commitments to Extend Credit, Term of Agreement

+ References

No definition available.

+ Details

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Namespace Prefix:	cvcy_
Data Type:	us-types:durationStringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Off-balance Sheet Commitments [Line Items]

+ References

No definition available.

+ Details

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Namespace Prefix:	cvcy_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The face amount of financial liabilities, which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition.

+ References

No definition available.

+ Details

Name:	us-gaap_FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14435-108349

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14557-108349

+ Details

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- Details

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X

- Details

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X

- Details

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- Details

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- Details

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- Details

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- Details

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