Parent Only Condensed Financial Statements Condensed Statements of Cash Flows (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities:
Net income	$ 5,294us-gaap_NetIncomeLoss	$ 8,250us-gaap_NetIncomeLoss	$ 7,520us-gaap_NetIncomeLoss
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Stock-based compensation	173us-gaap_ShareBasedCompensation	98us-gaap_ShareBasedCompensation	108us-gaap_ShareBasedCompensation
Tax benefit from exercise of stock options	(7)	(17)	(26)
Benefit for deferred income taxes	(408)	(296)	440
Cash flows from financing activities:
Cash dividend payments on common stock	(2,190)us-gaap_PaymentsOfDividendsCommonStock	(2,048)us-gaap_PaymentsOfDividendsCommonStock	(480)us-gaap_PaymentsOfDividendsCommonStock
Cash dividend payments on preferred stock	0	(438)	(350)
Share repurchase and retirement	0	0	(488)
Proceeds from exercise of stock options	55	789	385
Redemption of preferred stock Series C	0	(7,000)	0
Tax benefit from exercise of stock options	7	17	26
Net cash (used in) provided by financing activities	32,881	65,824	37,539
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	112,052	52,956	44,804
CASH AND CASH EQUIVALENTS AT END OF YEAR	77,328	112,052	52,956
Cash paid during the year for interest	1,171us-gaap_InterestPaid	1,430us-gaap_InterestPaid	1,939us-gaap_InterestPaid
Non-cash investing and financing activities:
Common stock issued in Visalia Community Bank acquisition	0us-gaap_StockIssued1	12,494us-gaap_StockIssued1	0us-gaap_StockIssued1
Parent Company
Cash flows from operating activities:
Net income	5,294	8,250	7,520
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Undistributed net income of subsidiary, net of distributions	(3,325)	9,414	(4,993)
Stock-based compensation	173	98	108
Tax benefit from exercise of stock options	(7)	(17)	(26)
Net (increase) decrease in other assets	(50)	86	(28)
Net increase (decrease) in other liabilities	34	(198)	179
Benefit for deferred income taxes	(8)	(18)	(15)
Net cash provided by (used in) operating activities	2,111	17,615	2,745
Cash flows used in investing activities:
Investment in subsidiary	0	(11,358)	0
Cash flows from financing activities:
Cash dividend payments on common stock	(2,190)	(2,048)	(480)
Cash dividend payments on preferred stock	0	(437)	(350)
Share repurchase and retirement	0	0	(488)
Proceeds from exercise of stock options	55	789	385
Tax benefit from exercise of stock options	7	17	26
Net cash (used in) provided by financing activities	(2,128)	(8,679)	(907)
Increase (decrease) in cash and cash equivalents	(17)	(2,422)	1,838
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	385	2,807	969
CASH AND CASH EQUIVALENTS AT END OF YEAR	368	385	2,807
Cash paid during the year for interest	$ 194	$ 125	$ 109

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