Condensed Consolidated Statements of Cash Flows (USD $)	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
CASH FLOWS FROM OPERATING ACTIVITIES
Net cash provided by operating activities	$ 8,968,505	$ 9,650,546
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from maturities and calls of securities available for sale	220,117,006	138,683,906
Proceeds from sales of securities available for sale		19,791,797
Purchases of investment securities available for sale	(244,228,754)	(138,881,327)
Purchases of bank premises and equipment	(70,332)	(967,408)
Increase(decrease) in interest bearing deposits with other banks	1,838,575	(33,708,589)
Purchase of Federal Home Loan Bank Stock	(282,700)	(108,000)
Redemption of Federal Home Loan Bank Stock	442,800
Proceeds from sale of other real estate	1,296,551	466,095
Net decrease in loans	9,068,662	12,350,775
Net cash provided by (used by) investing activities	(11,818,192)	(2,372,751)
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase in deposits	44,684,143	29,819,741
Net change in securities sold under agreement to repurchase	(58,862,734)	(12,990,464)
Proceeds from exercising stock options	257,425	63,385
Increase in Federal Home Loan Bank advances		(15,900,000)
(Decrease) increase in federal funds purchased	4,700,000	(2,500,000)
Payment of dividends	(3,206,771)	(3,195,991)
Net cash provided by financing activities	(12,427,937)	(4,703,329)
Net increase in cash and due from banks	(15,277,624)	2,574,466
Cash and due from banks, beginning of period	35,407,715	16,963,393
Cash and due from banks, end of period	$ 20,130,091	$ 19,537,859