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Goodwill and Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Goodwill [Line Items]
Goodwill	$ 29,917us-gaap_Goodwill	$ 29,917us-gaap_Goodwill	$ 23,577us-gaap_Goodwill
Core deposit intangibles	1,344us-gaap_FiniteLivedIntangibleAssetsNet	1,680us-gaap_FiniteLivedIntangibleAssetsNet
Intangible assets, accumulated amortization	1,421us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization	1,085us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Amortization of core deposit intangibles	337us-gaap_AmortizationOfIntangibleAssets	268us-gaap_AmortizationOfIntangibleAssets	200us-gaap_AmortizationOfIntangibleAssets
Visalia Community Bank [Member]
Goodwill [Line Items]
Goodwill	6,340us-gaap_Goodwill / cvcy_PriorBusinessAcquisitionAxis = cvcy_VisaliaCommunityBankMember
Service 1st Bank
Goodwill [Line Items]
Goodwill	14,643us-gaap_Goodwill / cvcy_PriorBusinessAcquisitionAxis = cvcy_Service1StBankMember
Bank of Madera County
Goodwill [Line Items]
Goodwill	8,934us-gaap_Goodwill / cvcy_PriorBusinessAcquisitionAxis = cvcy_BankOfMaderaCountyMember
Core deposits
Goodwill [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	5 years
Core deposits | Visalia Community Bank [Member]
Goodwill [Line Items]
Acquired Finite-lived Intangible Asset, Amount	1,365us-gaap_FinitelivedIntangibleAssetsAcquired1 / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CoreDepositsMember / cvcy_PriorBusinessAcquisitionAxis = cvcy_VisaliaCommunityBankMember
Core deposits | Service 1st Bank
Goodwill [Line Items]
Intangible assets, gross	$ 1,400us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CoreDepositsMember / cvcy_PriorBusinessAcquisitionAxis = cvcy_Service1StBankMember
Minimum | Core deposits
Goodwill [Line Items]
Estimated useful life of intangible asset	7 years
Maximum | Core deposits
Goodwill [Line Items]
Estimated useful life of intangible asset	10 years

X

- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (a)(3)

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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-Name Accounting Standards Codification

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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- Definition

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, resulting from a business combination.

+ References

No definition available.

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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