Employee Benefits - Salary continuation plans (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Appreciation in cash surrender value of bank owned life insurance	$ 614us-gaap_BankOwnedLifeInsuranceIncome	$ 495us-gaap_BankOwnedLifeInsuranceIncome	$ 391us-gaap_BankOwnedLifeInsuranceIncome
Annual tax free interest rate on life insurance policies	4.01%
Certain Key Executives [Member] \| Salary Continuation [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Contractual term	15 years
Salary continuation plans, expense for period	537	581	658
Total liability	5,283	4,834
Cash surrender value of life insurance	5,870	4,804
Appreciation in cash surrender value of bank owned life insurance	166	145	150
Service 1st Bank \| Certain Key Executives [Member] \| Salary Continuation [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Salary continuation plans, expense for period	153	194	184
Total liability	1,965	1,907
Cash surrender value of life insurance	4,456	4,326
Appreciation in cash surrender value of bank owned life insurance	130	130	150
Visalia Community Bank [Member] \| Certain Key Executives [Member] \| Salary Continuation [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Salary continuation plans, expense for period	80	8
Total liability	933	863
Cash surrender value of life insurance	7,112	6,897
Appreciation in cash surrender value of bank owned life insurance	$ 215	$ 111

Annual Tax Free Interest Rate On Life Insurance Policies

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- Definition

Deferred Compensation Arrangement with Individual, Contractual Term, Maximum

+ References

No definition available.

+ Details

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- Definition

Earnings on or other increases in the value of the cash surrender value of bank owned life insurance policies.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-04.13)

-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

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- Definition

Carrying amount as of the balance sheet date of amounts which could be received based on the terms of the insurance contract upon surrendering life policies owned by the entity.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.17)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 17

-Article 5

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section 45

-Paragraph 4

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6812-107765

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- Definition

The compensation expense recognized during the period pertaining to the deferred compensation arrangement.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 710

-SubTopic 10

-Section 30

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363

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- Definition

The carrying amount of the liability as of the balance sheet date to an individual under a deferred compensation arrangement. This amount may be the result of periodic accruals made over the period of active employment, or reflect termination benefits resulting contractual terms or a death benefit.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 710

-SubTopic 10

-Section 30

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363

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