CONSOLIDATED STATEMENTS OF INCOME (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Interest income:
Loans, including fees	$ 11,970,684	$ 13,083,935	$ 14,105,571
Investment securities:
Taxable	2,260,962	2,518,661	3,380,591
Tax-exempt	1,764,953	1,825,118	1,387,110
Dividends	35,198	28,275	17,633
Interest-bearing deposits	61,567	85,531	63,230
Total interest income	16,093,364	17,541,520	18,954,135
Interest expense:
Deposits	1,526,829	2,458,854	3,715,472
Other borrowings	41	16,288	106,876
Total interest expense	1,526,870	2,475,142	3,822,348
Net interest income	14,566,494	15,066,378	15,131,787
Provision for loan losses	3,882,409	2,465,000	2,960,237
Net interest income after provision for loan losses	10,684,085	12,601,378	12,171,550
Noninterest income:
Service charges on deposits	3,453,742	3,714,924	4,115,027
Gains on sales of securities	201,421	590,129	676,425
Gains on sales of assets	6,162
Other operating income	1,799,533	1,922,566	1,237,825
Total noninterest income	5,460,858	6,227,619	6,029,277
Noninterest expense:
Salaries and employee benefits	6,905,780	7,851,648	7,460,661
Occupancy and equipment	2,531,892	2,536,703	2,536,700
Other real estate owned, net	1,671,841	2,515,448	463,899
Other operating expenses	5,849,361	6,198,751	6,888,116
Total noninterest expense	16,958,874	19,102,550	17,349,376
Income (loss) before income taxes	(813,931)	(273,553)	851,451
Income tax benefit	(1,082,557)	(902,749)	(175,114)
Net income	268,626	629,196	1,026,565
Preferred dividends	236,820	313,624	311,953
Net income available to common stockholders	$ 31,806	$ 315,572	$ 714,612
Net income per common share-basic (in dollars per share)	$ 0.02	$ 0.15	$ 0.34
Net income per common share-diluted (in dollars per share)	$ 0.02	$ 0.15	$ 0.34
Weighted average outstanding shares:
Basic (in shares)	2,120,366	2,107,619	2,102,677
Diluted (in shares)	2,134,188	2,126,497	2,114,002