Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Consolidated Statements Of Cash Flows
Net income	$ 9,274	$ 23,383	$ 1,410
Provision for loan losses	1,500	5,346	8,337
Stock-based compensation costs	1,888	1,630	542
Gain on sales of securities	(5,672)	(1,022)	(2,014)
Gain on sales of loans	(534)
Gain on acquisitions		(36,922)	(2,312)
Net loss on sale and valuation adjustments of non-covered foreclosed property	1,626	5,487	1,380
Net gain on sale and valuation adjustments of covered foreclosed property	(2,358)	(1,853)
Impairment loss on securities	728	1,387	749
Amortization of net premiums on securities available-for-sale	6,853	3,878	3,711
Depreciation and amortization of premises and equipment	2,162	2,045	1,927
Amortization and impairment of intangible assets	6,995	2,289	1,666
Change in FDIC shared-loss asset	1,450	(3,116)
(Gain) loss on disposal of premises and equipment	67	(133)	49
Increase in cash surrender value of life insurance	(427)	(438)	(441)
Change in deferred taxes, net of effects from acquisitions	(6,333)	4,563	975
(Increase) decrease in accrued interest receivable and other assets, net of effects from acquisitions	2,602	(2,015)	1,367
(Decrease) increase in accrued interest payable and other liabilities, net of effects from acquisitions	(1,397)	(7,449)	59
Net cash provided by (used in) operating activities	18,424	(2,940)	17,405
Purchases of securities available-for-sale, net of effects from acquisitions	(415,390)	(330,796)	(308,107)
Proceeds from repayments and maturities of securities available-for-sale	201,292	150,661	149,941
Proceeds from sales of securities available-for-sale	286,645	38,958	237,965
Proceeds from redemption of Federal Home Loan Bank and other stock	748	1,989	954
Purchases of Federal Home Loan Bank and other stock		(5)	(49)
Net change in interest bearing deposits with other banks, net of effects from acquisitions	(99,620)	103,376	(19,398)
Loan originations, purchases and principal collections, net of effects of acquisition	(99,800)	50,756	(40,915)
Purchases of premises and equipment, net of effects of acquisition	(1,965)	(2,145)	(1,424)
Proceeds from sale of premises and equipment	6	1,269
Proceeds from FDIC shared-loss asset	21,288	22,051
Proceeds from sale of non-covered foreclosed property	3,828	3,019	2,237
Proceeds from sale of covered foreclosed property	19,939	21,607	763
Net cash acquired in acquisition		122,119	8,194
Net cash (used) provided by investing activities	(83,029)	182,859	30,161
Net increase (decrease) in noninterest-bearing deposits, net of effects from acquisitions	154,299	49,257	(9,389)
Net decrease in interest-bearing deposits, net of effects of acquisition	(71,736)	(137,443)	(64,340)
Net decrease in FHLB advances and other borrowings, net of effects of acquisition	(10,665)	(75,322)	(11,948)
Dividends paid on preferred stock	(1,250)	(1,097)	(1,250)
Proceeds from exercise of stock options	34
Purchases of treasury stock	(255)
Redemption of preferred stock series B		(25,000)
Issuance of preferred stock series C		25,000
Repurchase of warrant		(599)
Issuance of common stock			38,091
Net cash provided (used) by financing activities	70,427	(165,204)	(48,836)
Change in cash and due from banks	5,822	14,715	(1,270)
Cash and due from banks, beginning of period	40,202	25,487	26,757
Cash and due from banks, end of period	46,024	40,202	25,487
Supplemental cash flow information:
Cash paid for interest	9,723	13,236	14,434
Cash paid for income taxes	15,325	8,200	1,000
Supplemental disclosure of noncash items:
Net change in fair value of securities available-for-sale, net of tax	1,127	2,343	2,162
Net change in fair value of cash flow hedges, net of tax	(11)	(278)	47
Non-covered loans transferred to non-covered foreclosed property		3,356	25,660
Covered loans transferred to covered foreclosed property	6,721	22,587
Dividend declared	312	312
Acquisitions:
Assets acquired		458,642	108,628
Liabilities acquired		$ 437,220	$ 107,241