Percentage employer matches of the employee's percentage contribution matched.

No definition available.

Name:	cvcy_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch
Namespace Prefix:	cvcy_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Defined Contribution Plan Requisite Service Period

No definition available.

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

Defined Contribution Plan Requisite Service Period Minimum Hour Requirement

No definition available.

Name:	cvcy_DefinedContributionPlanRequisiteServicePeriodMinimumHourRequirement
Namespace Prefix:	cvcy_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

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

Amount of discretionary contributions made by an employer to a defined contribution plan.

No definition available.

Name:	us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

No definition available.

Name:	us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Percentage of employer's matching contributions to a defined contribution plan that vests in a given year.

No definition available.

Name:	us-gaap_DefinedContributionPlanEmployersMatchingContributionAnnualVestingPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Employee Benefits - 401(k) and profit sharing plan (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013 H	Dec. 31, 2012	Dec. 31, 2011
401(k) plan
Schedule of Defined Contribution Plans Disclosures [Line Items]
Requisite service period	3 months
Minimum number of hours in service period	1,000
Employer contribution amount	$ 382	$ 388	$ 352
Profit sharing plan
Schedule of Defined Contribution Plans Disclosures [Line Items]
Requisite service period	2 years
Percentage vesting annually	100.00%
Employer contribution amount	$ 225	$ 210	$ 150
Up to 3% of eligible compensation \| 401(k) plan
Schedule of Defined Contribution Plans Disclosures [Line Items]
Employer matching of employee contributions, percentage	100.00%
Employer matching contribution, percentage of compensation	3.00%
Over 3% of eligible compensation \| 401(k) plan
Schedule of Defined Contribution Plans Disclosures [Line Items]
Employer matching of employee contributions, percentage	50.00%
Employer matching contribution, percentage of compensation	3.00%
Maximum \| 401(k) plan
Schedule of Defined Contribution Plans Disclosures [Line Items]
Employer matching contribution, percentage of compensation	5.00%