Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Interest Income
Interest and Fees on Loans	$ 70,180	$ 72,643	$ 74,901
Interest on Deposits with Banks	117	91	96
Interest on Investment Securities:
Taxable	9,490	8,971	13,396
Exempt from Federal Tax	2,567	2,756	2,921
Total Interest Income	82,354	84,461	91,314
Interest Expense
Deposits	5,463	7,168	13,746
Borrowed Funds	2,181	2,184	2,188
Subordinated Debentures	330	333	397
Total Interest Expense	7,974	9,685	16,331
Net Interest Income	74,380	74,776	74,983
Provision for Loan Losses	6,775	14,735	15,420
Net Interest Income After Provision for Loan Losses	67,605	60,041	59,563
Non-Interest Income
Service Charges on Deposit Accounts	5,395	6,529	6,956
Net Gain on Investment Securities	95	2,895	3,524
Increase in Cash Surrender Value of Life Insurance	1,834	1,825	1,794
Debit Card and ATM Fees	2,760	2,591	2,245
Net Gain on Deferred Compensation Investments	199	1,376	1,847
Other	1,991	1,969	1,828
Total Non-Interest Income	12,274	17,185	18,194
Non-Interest Expense
Salaries and Employee Benefits	29,670	28,332	28,771
Net Gain on Deferred Compensation Investments	199	1,376	1,847
Occupancy	2,579	2,422	2,715
Equipment	2,844	2,605	2,417
ORE Holding Costs	1,785	1,247	1,464
FDIC Insurance	1,461	2,286	2,496
Other	6,490	5,671	6,719
Total Non-Interest Expense	45,028	43,939	46,429
Income Before Income Taxes	34,851	33,287	31,328
Provision for Income Taxes	12,642	12,169	11,315
Net Income	$ 22,209	$ 21,118	$ 20,013
Earnings Per Share (in dollars per share)	$ 28.49	$ 27.05	$ 25.57