Available-for-sale Securities, Number of Positions

No definition available.

Name:	cvcy_AvailableForSaleSecuritiesNumberOfPositions
Namespace Prefix:	cvcy_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

+ References

No definition available.

+ Details

Name:	cvcy_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociForSaleOfSecuritiesTax
Namespace Prefix:	cvcy_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

This item represents the cost of debt securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References

No definition available.

+ Details

Name:	us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This item represents the gross unrealized gains for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 22

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27161-111563

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 13, 19

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Name:	us-gaap_AvailableforsaleSecuritiesGrossUnrealizedGain
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The net amount of gross unrealized gains (losses) for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 9

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27357-111563

+ Details

Name:	us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGainLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Disclosure regarding factors used to determine that the impairment of securities not categorized as either held-to-maturity securities or trading securities (hence equal to available for sale securities) where cost exceeds fair value is not an other than temporary impairment (OTTI). This item contains disclosure of the number of investment positions in the available-for-sale investments determined to be temporarily impaired.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 6

-Subparagraph (b)(3)

-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27290-111563

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Emerging Issues Task Force (EITF)

-Number 03-1

-Paragraph 21

-Subparagraph b(3)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name FASB Staff Position (FSP)

-Number FAS115-1/124-1

-Paragraph 17

-Subparagraph b(3)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Name:	us-gaap_AvailableForSaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions
Namespace Prefix:	us-gaap_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

The fair value of available-for-sale securities that serve as collateral for borrowings.

+ References

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

-Publisher AICPA

-Name Statement of Position (SOP)

-Number 01-6

-Paragraph 13

-Subparagraph i

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5086-111524

+ Details

Name:	us-gaap_AvailableForSaleSecuritiesPledgedAsCollateral
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Investments - Textual (Details) (USD $)	3 Months Ended		9 Months Ended
Investments - Textual (Details) (USD $)	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Schedule of Available-for-sale Securities
Available-for-sale Securities Pledged as Collateral	$ 109,500,000		$ 109,500,000
Available-for-sale Securities, Gross Unrealized Gain (Loss)	(1,437,000)		(1,437,000)		12,891,000
Income tax impact from the reclassification of unrealized net gains on available-for-sale securities to realized net gains on available-for-sale securities	0	348,000	466,000	530,000
Gross Unrealized Gains	7,075,000		7,075,000		14,612,000
U.S. Government agencies
Schedule of Available-for-sale Securities
Available-for-sale Securities, Number of Positions	6		6
Debt Securities, Amortized Cost	16,410,000		16,410,000		9,443,000
Gross Unrealized Gains	198,000		198,000		34,000
Obligations of states and political subdivisions
Schedule of Available-for-sale Securities
Available-for-sale Securities, Number of Positions	213		213
Debt Securities, Amortized Cost	186,818,000		186,818,000		151,312,000
Gross Unrealized Gains	4,598,000		4,598,000		10,751,000
U.S. Government agencies collateralized by residential mortgage obligations
Schedule of Available-for-sale Securities
Available-for-sale Securities, Number of Positions	197		197
Debt Securities, Amortized Cost	203,728,000		203,728,000		206,465,000
Gross Unrealized Gains	1,295,000		1,295,000		3,152,000
Private label residential mortgage backed securities
Schedule of Available-for-sale Securities
Available-for-sale Securities, Gross Unrealized Gain (Loss)	954,000		954,000
Available-for-sale Securities, Number of Positions	21		21
Available-for-sale, Securities in Unrealized Loss Positions, Number of Positions	0		0
Debt Securities, Amortized Cost	4,718,000		4,718,000		6,258,000
Gross Unrealized Gains	954,000		954,000		323,000
Other equity securities
Schedule of Available-for-sale Securities
Gross Unrealized Gains	30,000		30,000		352,000
Less than 12 months \| U.S. Government agencies
Schedule of Available-for-sale Securities
Available-for-sale, Securities in Unrealized Loss Positions, Number of Positions	2		2
Less than 12 months \| Obligations of states and political subdivisions
Schedule of Available-for-sale Securities
Available-for-sale, Securities in Unrealized Loss Positions, Number of Positions	76		76
Less than 12 months \| U.S. Government agencies collateralized by residential mortgage obligations
Schedule of Available-for-sale Securities
Available-for-sale, Securities in Unrealized Loss Positions, Number of Positions	41		41
Greater than 12 months \| U.S. Government agencies
Schedule of Available-for-sale Securities
Available-for-sale, Securities in Unrealized Loss Positions, Number of Positions	0		0
Greater than 12 months \| Obligations of states and political subdivisions
Schedule of Available-for-sale Securities
Available-for-sale, Securities in Unrealized Loss Positions, Number of Positions	2		2
Greater than 12 months \| U.S. Government agencies collateralized by residential mortgage obligations
Schedule of Available-for-sale Securities
Available-for-sale, Securities in Unrealized Loss Positions, Number of Positions	21		21
Below investment grade \| Private label residential mortgage backed securities
Schedule of Available-for-sale Securities
Available-for-sale Securities, Gross Unrealized Gain (Loss)	857,000		857,000
Available-for-sale Securities, Number of Positions	8		8
Debt Securities, Amortized Cost	$ 3,713,000		$ 3,713,000