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Acquisition of Visalia Community Bank - Narrative (Details) (USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended
	Jul. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 19, 2012 branches
Business Acquisition [Line Items]
Goodwill		$ 29,917us-gaap_Goodwill	$ 29,917us-gaap_Goodwill	$ 23,577us-gaap_Goodwill
Non Impaired Loans And Customer Receivables Acquired Fair Value	110,891cvcy_NonImpairedLoansAndCustomerReceivablesAcquiredFairValue
Non Impaired Loans And Customer Receivables Acquired Contractual Amount	113,743cvcy_NonImpairedLoansAndCustomerReceivablesAcquiredContractualAmount
Visalia Community Bank [Member]
Business Acquisition [Line Items]
Total assets acquired	197,621us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets / us-gaap_BusinessAcquisitionAxis = cvcy_VisaliaCommunityBankMember
Business Acquisition Estimated Number Of Shares To Be Issued In Merger Transaction	1,263,000us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued / us-gaap_BusinessAcquisitionAxis = cvcy_VisaliaCommunityBankMember
Cash	11,050us-gaap_PaymentsToAcquireBusinessesGross / us-gaap_BusinessAcquisitionAxis = cvcy_VisaliaCommunityBankMember
Goodwill	6,340us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = cvcy_VisaliaCommunityBankMember
Core deposit intangible	$ 1,365us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = cvcy_VisaliaCommunityBankMember
Visalia, California [Member] | Visalia Community Bank [Member]
Business Acquisition [Line Items]
Number of Branches to Be Acquired					3cvcy_NumberOfBranchesToBeAcquired / cvcy_BranchLocationAxis = cvcy_VisaliaCaliforniaMember / us-gaap_BusinessAcquisitionAxis = cvcy_VisaliaCommunityBankMember
Exeter, California [Member] | Visalia Community Bank [Member]
Business Acquisition [Line Items]
Number of Branches to Be Acquired					1cvcy_NumberOfBranchesToBeAcquired / cvcy_BranchLocationAxis = cvcy_ExeterCaliforniaMember / us-gaap_BusinessAcquisitionAxis = cvcy_VisaliaCommunityBankMember
Visalia Community Bank Common Shareholder [Member] | Visalia Community Bank [Member]
Business Acquisition [Line Items]
Business Acquisition Estimated Shares In Kind Payment Per Acquiree Company Share	2.971cvcy_BusinessAcquisitionShareForShareExchangeNumberofSharesIssuable / us-gaap_BusinessAcquisitionAxis = cvcy_VisaliaCommunityBankMember / us-gaap_CounterpartyNameAxis = cvcy_VisaliaCommunityBankCommonShareholderMember

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