Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2012	Sep. 30, 2011
Cash flows from operating activities:
Net income	$ 4,454	$ 13,038	$ 10,304
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization of premiums and accretion of discounts on investment securities, net		3,539	2,983
Depreciation and amortization		656	725
Stock-based compensation		27	27
Provision for loan losses	225	225	2,148
Provision for deferred taxes			249
Net other-than-temporary impairment losses on investment securities	134	332	303
Net loss on sale of other real estate owned		9
Gains on sales of investment securities, net	(897)	(2,545)	(3,120)
Loans originated for resale		(14,578)	(7,589)
Proceeds from sale of loans held for sale		14,871	7,541
Gains on sale of loans held for sale		(313)	(152)
Decrease (increase) in accrued interest receivable		180	(1,482)
Decrease in prepaid FDIC insurance assessments		777	1,534
Increase in cash surrender value of bank-owned life insurance		(736)	(780)
Increase in other assets		(2,005)	(3,104)
Increase in other liabilities		890	5,492
Net cash provided by operating activities		14,367	15,079
Cash flows from investing activities:
Investment securities available-for-sale: Purchases		(184,562)	(341,429)
Investment securities available-for-sale: Sales		114,583	236,388
Investment securities available-for-sale: Maturities, calls and principal repayments		28,324	35,979
Investment securities held-to-maturity: Purchases		(7,407)	(5,843)
Investment securities held-to-maturity: Maturities and principal repayments		22,685	2,375
Net redemption of restricted investment in bank stocks		319	402
Net increase in loans		(62,418)	(14,443)
Purchases of premises and equipment		(596)	(130)
Proceeds from sale of other real estate owned		500
Cash and cash equivalent acquired in acquisition		6,195
Cash consideration paid in acquisition		(10,251)
Net cash used in investing activities		(92,628)	(86,701)
Cash flows from financing activities:
Net increase in deposits		86,362	199,690
Net increase (decrease) in short-term borrowings		50	(41,855)
Repayments of long-term borrowings		(15,000)	(10,000)
Cash dividends on preferred stock		(391)	(417)
Cash dividends on common stock		(1,879)	(1,466)
Proceeds from issuance of SBLF preferred stock			11,250
Redemption of preferred stock			(10,000)
Issuance cost of common stock		(6)	(4)
Proceeds from exercise of stock options		132	7
Net cash provided by financing activities		69,268	147,205
Net change in cash and cash equivalents		(8,993)	75,583
Cash and cash equivalents at beginning of period		111,101	37,497
Cash and cash equivalents at end of period	102,108	102,108	113,080
Supplemental disclosures of cash flow information:
Cash payments for: Interest paid on deposits and borrowings		9,028	9,192
Income taxes		5,507	3,529
Supplemental disclosures of non-cash investing activities:
Trade date accounting settlement for investments, net			2,999
Transfer from investment securities available-for-sale to investment securities held-to-maturity			66,833
Business combinations:
Investment securities available-for-sale	37,143	37,143
Loans	52,192	52,192
Premises and equipment, net	1,262	1,262
Accrued interest receivable	389	389
Total non-cash assets acquired	90,986	90,986
Deposits	85,236	85,236
Other liabilities	795	795
Total liabilities assumed	86,031	86,031
Net non-cash assets acquired	4,056	4,056
Bargain gain on acquisition	$ 899	$ 899