Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 3,808	$ 3,725
Adjustments to reconcile net income to net cash provided by operating activities:
Net gain on sales of investments	(148)	(164)
Provision for loan losses	1,100	1,200
Deferred income taxes	(444)	(421)
Net depreciation and amortization	1,505	1,411
Decrease (increase) in accrued interest receivable	(72)	33
Increase in other assets	(785)	596
Increase (decrease) in other liabilities	325	748
Net cash provided by operating activities	5,289	7,128
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from maturities of short-term investments	11,101	37,098
Purchase of short-term investments	(6,053)	(34,131)
Proceeds from maturities of securities available-for-sale	144,891	99,533
Proceeds from sales of securities available-for-sale	72,198	12,642
Purchase of securities available-for-sale	(249,934)	(175,589)
Proceeds from maturities of securities held-to-maturity	24,776	25,918
Purchase of securities held-to-maturity	(137,000)
Net (increase) decrease in loans	(3,712)	(38,981)
Capital expenditures	(634)	(319)
Net cash used in investing activities	(144,367)	(73,829)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net increase in time deposits	5,973	82,436
Net increase in demand, savings, money market and NOW deposits	61,109	47,919
Net proceeds from exercise of stock options	127	6
Cash dividends	(545)	(544)
Net increase (decrease) in securities sold under agreements to repurchase	(1,090)	11,040
Net decrease in other borrowed funds	(3,000)	(23,975)
Net cash provided by financing activities	62,574	116,882
Net (decrease) increase in cash and cash equivalents	(76,504)	50,181
Cash and cash equivalents at beginning of period	207,766	188,552
Cash and cash equivalents at end of period	131,262	238,733
Cash paid during the period for:
Interest	5,016	5,533
Income taxes	190	434
Change in unrealized gains on securities available-for-sale, net of taxes	1,736	(687)
Pension liability adjustment, net of taxes	162	95
Due to broker	$ 44,423	$ 1,250