CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Operating Activities
Net income	$ 5,662	$ 6,583
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	674	1,005
Depreciation and amortization	1,360	1,033
Stock-based compensation expense	173	130
Increase in interest receivable	(445)	(90)
Amortization of intangible assets	288	144
Net decrease in trading assets	56	50
Net investment securities gains and other-than-temporary impairment of securities	(138)	(121)
Increase in other real estate owned valuation allowance and loss on disposition	7	180
Originations of mortgage loans held for sale	(10,988)	(8,492)
Proceeds from the sale of mortgage loans	9,687	5,728
Gain on sale of mortgage loans	(307)	(319)
Decrease in prepaid FDIC assessment	342	289
Decrease in other assets	662	884
Increase (decrease) in other liabilities	(33)	8
Net cash provided by operating activities	7,000	7,012
Investing Activities
Proceeds from sales and maturities of securities available-for-sale	41,365	61,039
Purchase of securities available-for-sale	(68,864)	(94,708)
Net increase in loans	(15,302)	(4,082)
Proceeds from sale of Federal Home Loan Bank stock	1,310	928
Proceeds from the sale of other real estate owned	43	302
Proceeds from previously charged-off loans	228	97
Cash settlement in branch acquisition	(3,288)
Purchase of premises and equipment	(359)	(187)
Net cash (used) provided by investing activities	(44,867)	(36,611)
Financing Activities
Net (decrease) increase in deposits	22,316	(35,617)
Proceeds from Federal Home Loan Bank long-term advances
Repayments on Federal Home Loan Bank long-term advances	(122)	(91)
Net change in short-term Federal Home Loan Bank borrowings	52,800	85,000
Net decrease in other borrowed funds	(46,621)	(21,101)
Exercise of stock options and issuance of restricted stock, net of repurchase for tax withholdings and tax benefit	(19)	(240)
Cash dividends paid on common stock	(1,909)	(1,945)
Net cash provided by financing activities	26,445	26,006
Net decrease in cash and cash equivalents	(11,422)	(3,593)
Cash and cash equivalents at beginning of year	58,290	39,325
Cash and cash equivalents at end of period	46,868	35,732
Supplemental information
Interest paid	3,481	4,563
Income taxes paid	300
Transfer from loans to other real estate owned	$ 650	$ 698