Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:
NET INCOME	$ 5,565	$ 5,166
Adjustments to reconcile net income to net cash provided by operations:
PROVISION FOR LOAN LOSSES	943	1,019
Depreciation and amortization of premises and equipment, core deposit intangible, and mortgage servicing rights	1,018	1,011
Amortization and accretion of securities premiums and discounts, deferred loan fees and costs, net yield and credit mark on acquired loans, and unearned income	(800)	157
Net realized gains on sales of available-for-sale securities	(19)	(66)
Net realized and unrealized losses on trading securities	32	25
Proceeds from sale of trading securities	274	0
Purchase of trading securities	(303)	0
Gain on sale of loans	(81)	(119)
Net (losses) on dispositions of premises and equipment and foreclosed assets	18	(105)
Proceeds from sale of loans	1,899	2,223
Origination of loans held for sale	(2,622)	(2,021)
Income on bank owned life insurance	(276)	(240)
Stock-based compensation expense	157	208
Contribution of treasury stock	12	30
Changes in:
Accrued interest receivable and other assets	2,855	2,620
Accrued interest payable and other liabilities	(3,424)	(3,436)
NET CASH PROVIDED BY OPERATING ACTIVITIES	5,248	6,472
CASH FLOWS FROM INVESTING ACTIVITIES:
Net decrease in interest bearing time deposits with other banks	0	50
Proceeds from maturities, prepayments and calls of available-for-sale securities	25,021	20,162
Proceeds from sales of available-for-sale securities	32,949	12,951
Purchase of available-for-sale securities	(20,763)	(29,027)
Loan origination and payments, net	(96)	1,201
Redemption of FHLB and other equity interests	1,772	14
Purchase of premises and equipment	(1,435)	(1,910)
Proceeds from the sale of premises and equipment and foreclosed assets	4	164
NET CASH PROVIDED BY INVESTING ACTIVITIES	37,452	3,605
Net change in:
Checking, money market and savings accounts	(14,977)	38,520
Certificates of deposit	35,279	(45,176)
Purchase of treasury stock	(868)	0
Cash dividends paid	(2,384)	(2,387)
Repayment of long-term borrowings	(63)	(51)
Proceeds from long-term borrowings	0	950
Net change in short-term borrowings	(35,980)	2,300
NET CASH USED IN FINANCING ACTIVITIES	(18,993)	(5,844)
NET INCREASE IN CASH AND CASH EQUIVALENTS	23,707	4,233
CASH AND CASH EQUIVALENTS, Beginning	27,928	29,633
CASH AND CASH EQUIVALENTS, Ending	51,635	33,866
Cash paid during the period for:
Interest	3,034	3,201
Income taxes	38	542
SUPPLEMENTAL NONCASH DISCLOSURES:
Transfers to other real estate owned	172	129
Grant of restricted stock awards from treasury stock	$ 821	$ 609