Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
ASSETS
Cash and due from banks	$ 21,399	$ 30,197
Interest-bearing deposits in banks	533	16,242
Federal funds sold	0	752
Cash and cash equivalents	21,932	47,191
Investment securities:
Available for sale	572,461	557,541
Held to maturity (fair value of $32,579 as of March 31, 2013 and $32,920 as of December 31, 2012)	32,545	32,669
Loans held for sale	872	1,195
Loans	1,041,783	1,035,284
Allowance for loan losses	(16,260)	(15,957)
Net loans	1,025,523	1,019,327
Loan pool participations, net	32,379	35,650
Premises and equipment, net	25,425	25,609
Accrued interest receivable	9,443	10,292
Intangible assets, net	9,303	9,469
Bank-owned life insurance	28,907	28,676
Other real estate owned	3,025	3,278
Assets held for sale	764	764
Deferred income taxes	1,287	776
Other assets	21,779	20,382
Total assets	1,785,645	1,792,819
LIABILITIES
Non-interest-bearing demand	175,510	190,491
Interest-bearing checking	590,899	582,283
Savings	95,760	91,603
Certificates of deposit under $100,000	298,112	312,489
Certificates of deposit $100,000 and over	213,364	222,867
Total deposits	1,373,645	1,399,733
Federal funds purchased	1,569	0
Securities sold under agreements to repurchase	54,277	68,823
Federal Home Loan Bank borrowings	152,147	120,120
Deferred compensation liability	3,533	3,555
Long-term debt	15,464	15,464
Accrued interest payable	1,492	1,475
Other liabilities	6,653	9,717
Total liabilities	1,608,780	1,618,887
SHAREHOLDERS' EQUITY
Preferred stock, no par value; authorized 500,000 shares; no shares issued and outstanding at March 31, 2013 and December 31, 2012	0	0
Common stock, $1.00 par value; authorized 15,000,000 shares at March 31, 2013 and December 31, 2012; issued 8,690,398 shares at March 31, 2013 and December 31, 2012; outstanding 8,498,484 shares at March 31, 2013 and 8,480,488 shares at December 31, 2012	8,690	8,690
Additional paid-in capital	80,243	80,383
Treasury stock at cost, 191,914 shares as of March 31, 2013 and 209,910 shares at December 31, 2012	(3,039)	(3,316)
Retained earnings	83,722	79,995
Accumulated other comprehensive income	7,249	8,180
Total shareholders' equity	176,865	173,932
Total liabilities and shareholders' equity	$ 1,785,645	$ 1,792,819