CONSOLIDATED STATEMENTS OF INCOME (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
INTEREST AND DIVIDEND INCOME
Loans, including fees	$ 43,180,698	$ 35,064,009	$ 36,094,302
Taxable securities	5,874,019	6,327,489	7,136,112
Tax exempt securities	1,378,753	1,188,193	1,131,610
Federal funds sold	0	0	1,232
Interest-bearing deposits	214,529	166,239	126,816
Total interest and dividend income	50,647,999	42,745,930	44,490,072
INTEREST EXPENSE
Deposits	4,350,419	5,624,402	8,428,760
Borrowed funds	1,073,016	950,866	951,060
Securities sold under agreements to repurchase	1,375,361	1,640,543	1,954,915
Total interest expense	6,798,796	8,215,811	11,334,735
Net interest income	43,849,203	34,530,119	33,155,337
Provision for loan losses	958,333	1,125,000	2,450,000
Net interest income after provision for loan losses	42,890,870	33,405,119	30,705,337
Other operating income:
Wealth management group fee income	6,709,685	10,496,637	8,088,654
Service charges on deposit accounts	4,281,808	4,552,430	5,263,215
Net gain on securities transactions	1,108,091	450,666	784,589
Other-than-temporary loss on investment securities:
Total impairment losses	(67,400)	(393,005)	(2,242,446)
Loss recognized in other comprehensive income	0	0	0
Net impairment loss recognized in earnings	(67,400)	(393,005)	(2,242,446)
Net gain on sales of loans held for sale	179,096	241,537	258,572
Credit card merchant earnings	225,527	204,561	178,180
Gains on sales of other real estate owned	93,204	42,545	24,097
Income from bank owned life insurance	88,389	87,489	51,129
Other	4,845,858	3,961,816	3,303,505
Total other operating income	17,464,258	19,644,676	15,709,495
Other operating expenses:
Salaries and wages	17,136,433	15,343,811	15,055,292
Pension and other employee benefits	4,796,994	3,866,744	5,096,509
Net occupancy expenses	5,015,936	4,334,441	4,283,554
Furniture and equipment expenses	2,118,544	1,948,900	1,996,067
Data processing expense	3,915,841	3,364,240	4,078,361
Amortization of intangible assets	1,041,193	730,894	933,305
Losses on sales of other real estate owned	1,671	17,982	29,010
Other real estate owned expenses	104,829	348,939	163,641
FDIC insurance	967,254	1,196,901	1,512,629
Merger related expenses	2,255,169	482,180	0
Other	7,430,359	6,207,651	6,172,966
Total other operating expenses	44,784,223	37,842,683	39,321,334
Income before income tax expense	15,570,905	15,207,112	7,093,498
Income tax expense	5,033,150	5,105,239	1,860,663
Net income	$ 10,537,755	$ 10,101,873	$ 5,232,835
Weighted average shares outstanding (in shares)	4,382,843	3,606,541	3,603,129
Basic and diluted earnings per share (in dollars per share)	$ 2.40	$ 2.80	$ 1.45