Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Operating Activities
Net income	$ 15,761	$ 14,373
Items not requiring (providing) cash
Provision for loan losses	2,917	1,809
Depreciation and amortization	2,522	1,988
Share based compensation	31	25
Mortgage servicing rights impairment (recovery)	(208)	369
Premium amortization on securities available for sale, net	2,221	2,387
Gain on sale of investment securities	(374)	(2)
Gain on sale of mortgage loans	(7,580)	(10,121)
Proceeds from sales of loans	306,505	293,909
Loans originated for sale	(289,775)	(283,788)
Change in cash value of life insurance	(753)	(727)
(Gain) loss on sale of other real estate owned	(270)	(5)
Net change in
Interest receivable	210	(757)
Interest payable	(72)	(107)
Other assets	8,493	217
Other liabilities	326	(2,112)
Net cash provided by operating activities	39,954	17,458
Investing Activities
Purchases of securities available for sale	(152,275)	(96,713)
Proceeds from sales, maturities, calls, and principal repayments of securities available for sale	103,893	92,734
Purchase of securities held to maturity	(9,910)
Proceeds from maturities of securities held to maturity		4,177
Purchase of Federal Reserve Bank stock	(851)
Net change in loans	101,796	(66,596)
Proceeds on the sale of OREO and repossessed assets	2,138	2,661
Purchases of premises and equipment	(3,033)	(4,520)
Acquisition of Heartland		26,283
Net cash provided by (used in) by investing activities	41,758	(41,974)
Net change in
Deposits	34,167	85,861
Borrowings	(103,142)	(38,078)
Proceeds from issuance of stock	34	341
Dividends paid on common shares	(2,698)	(2,168)
Dividends paid on preferred shares	(308)	(325)
Net cash provided by (used in) financing activities	(71,947)	45,631
Net Change in Cash and Cash Equivalent	9,765	21,115
Cash and Cash Equivalents, Beginning of Period	30,735	20,447
Cash and Cash Equivalents, End of Period	40,500	41,562
Additional Cash Flows Information
Interest paid	10,265	10,882
Income taxes paid	3,100	3,925
Transfer of loans to other real estate owned	$ 2,528	$ 3,486