Consolidated Statements of Cash Flows (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Cash Flows from Operating Activities
Net income	$ 4,117,415	$ 3,667,316	$ 3,417,478
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,163,452	1,234,425	808,312
Disposal of obsolete assets fixed assets	44,708	140,067	0
Provision for loan losses	1,933,336	2,075,000	1,710,000
Loss on sale or impairment of other real estate	1,018,188	119,810	135,759
Deferred tax benefit	(118,646)	(854,412)	(874,440)
Loss on impairment of securities	189,127	1,403,553	771,634
(Gain) on sale and call of securities	(102,471)	(541,109)	0
Tax benefit of nonqualified options exercised	(33,083)	(54,832)	(10,162)
Amortization (accretion) of security premiums, net	84,420	71,748	(19,698)
Amortization of unearned compensation, net of forfeiture	136,593	246,789	208,666
Changes in assets and liabilities:
Decrease(increase) in other assets	491,606	(47,042)	(2,518,912)
Increase(decrease) in other liabilities	1,753,679	(313,656)	398,205
Net cash provided by operating activities	10,678,324	7,147,657	4,026,842
Cash Flows from Investing Activities
Proceeds from sale of securities available for sale	6,599,281	10,487,508	0
Proceeds from maturities, calls and principal payments of securities available for sale	25,467,630	14,707,585	9,145,417
Purchase of securities available for sale	(32,200,837)	(36,817,758)	(11,757,480)
Purchase of premises and equipment	(1,838,399)	(1,507,121)	(6,212,840)
(Purchase of) proceeds from redemption of other bank stock	845,100	386,400	(719,900)
Net decrease (increase) in loans	4,967,307	(1,010,644)	(29,815,529)
Proceeds from sale of other real estate owned	1,482,245	817,050	869,626
Net cash provided by (used in) investing activities	5,322,327	(12,936,980)	(38,490,706)
Cash Flows from Financing Activities
Net increase in demand deposits, NOW accounts and savings accounts	22,404,799	85,969,632	11,891,346
Net (decrease) increase in certificates of deposit	(11,891,721)	(31,900,019)	53,801,780
Federal Home Loan Bank advances	0	0	170,000,000
Federal Home Loan Bank principal repayments	0	(25,000,000)	(165,000,000)
Repayment of federal funds	0	0	(18,275,000)
Cash dividends paid on common stock	(1,761,484)	(2,615,023)	(2,877,259)
Issuance of common stock	225,481	308,865	108,202
Net cash provided by financing activities	8,977,075	26,763,455	49,649,069
Increase (decrease) in cash and cash equivalents	24,977,726	20,974,132	15,185,205
Cash and Cash Equivalents
Beginning	47,182,499	26,208,367	11,023,162
Ending	72,160,225	47,182,499	26,208,367
Cash payments for:
Interest	5,137,813	6,272,878	7,048,637
Income taxes	656,392	2,376,000	1,729,000
Supplemental Disclosures of Noncash Investing Activities
Foreclosed assets acquired in settlement of loans	1,455,433	1,278,000	450,775
Unrealized gain (loss) on securities available for sale, net of tax effect	758,134	(556,131)	31,279
Unrealized gain (loss) on interest rate swap, net of tax effect	(192,560)	12,326	0
Changes in benefit obligations and plan assets for defined benefit and post-retirement benefit plans, net of tax effect	$ 181,717	$ 402,579	$ 262,539