CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 15,776	$ 10,572	$ 4,238
Adjustments to net income:
Depreciation and amortization expense	1,358	1,203	991
Provision for loan losses	751	3,255	2,092
Share-based compensation expense	177	208	86
Loss on sale of other real estate owned	783	783	461
Write down of other real estate owned	556	172	698
(Gain) loss on sale and disposal of premises and equipment	(597)	65	30
Amortization of premium/discounts on securities held for sale, net	787	685	835
Amortization of loan mark-to-market discount	(1,794)	(1,600)
Gain on sale of investment securities available for sale	(1,953)	(1,589)	(1,020)
Other-than-temporary impairment loss on investment securities, net	159	617	1,087
Recoveries on loans	236	402	221
Proceeds from the sales of and principal payments from loans held for sale	8,582
Gain on sale of loans held for sale	(164)
Purchase and origination of loans held for sale	(12,099)
(Gain) loss on sale of loans held for investment	(464)	3,605	3,332
Gain on FDIC transaction	(5,340)	(4,189)
Deferred income tax provision (benefit)	1,560	1,244	(216)
Change in accrued expenses and other liabilities, net	2,033	(3,500)	(3,113)
Income from bank owned life insurance, net	(508)	(523)	(528)
Change in accrued interest receivable and other assets, net	2,330	587	238
Net cash provided by operating activities	12,169	11,997	9,432
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from sale and principal payments on loans held for investment	204,843	139,267	88,628
Net change in undisbursed loan funds	47,805	15,377	21,984
Purchase and origination of loans held for investment	(427,823)	(185,896)	(108,775)
Proceeds from sale of other real estate owned	12,318	14,794	5,751
Principal payments on securities available for sale	16,039	14,842	21,562
Purchase of securities available for sale	(96,438)	(84,450)	(156,347)
Proceeds from sale or maturity of securities available for sale	114,376	123,972	103,550
Purchases of premises and equipment	(4,525)	(2,822)	(531)
Redemption (purchase) of Federal Reserve Bank stock		1,167	(420)
Redemption of Federal Home Loan Bank of San Francisco stock	2,553	1,014	1,416
Cash acquired in FDIC transaction	39,491	26,389
Net cash (used in) provided by investing activities	(91,361)	63,654	(23,182)
CASH FLOWS FROM FINANCING ACTIVITIES
Net (decrease) increase in deposit accounts	(39,691)	(35,041)	40,506
Repayment of FHLB advances and other borrowings		(40,000)	(63,000)
Proceeds from FHLB advances and other borrowings	87,000		40,000
Proceeds from issuance of common stock, net of issuance cost	30,958
Proceeds from exercise of stock options	237	274
Warrants purchased and retired		(3,660)
Repurchase of common stock	(195)	(451)
Net cash provided (used in) financing activities	78,309	(78,878)	17,506
Net increase (decrease) in Cash and cash equivalents	(883)	(3,227)	3,756
Cash and cash equivalents, beginning of year	60,235	63,462	59,706
Cash and cash equivalents, end of year	59,352	60,235	63,462
SUPPLEMENTAL CASH FLOW DISCLOSURES
Interest paid	7,162	9,576	12,711
Income taxes paid	8,975	4,105	2,300
Assets acquired (liabilities assumed) in FDIC transaction (See Note 3):
Investment securities	101	14,076
FRB and FHLB Stock	1,390
FDIC receivable	167	2,838
Loans	63,773	149,739
Core deposit intangible	840	2,270
Other real estate owned	11,533	11,953
Fixed assets		42
Other assets	3,656	1,599
Deposits	(115,582)	(204,678)
Other liabilities	(29)	(39)
NONCASH INVESTING ACTIVITIES DURING THE PERIOD
Transfers from loans to other real estate owned	3,151	4,995	3,564
Investment securities available for sale purchased and not settled			$ 5,125