Consolidated Balance Sheets (unaudited) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Assets
Cash and due from banks	$ 14,572,691	$ 15,982,070
Interest-bearing due from banks	29,152,940	24,732,329
Federal funds sold	1,229,308	1,602,847
Cash and cash equivalents	44,954,939	42,317,246
Securities available-for-sale, at fair value	321,644,564	329,455,812
Securities held-to-maturity (fair value approximates $573,271 and $573,500)	570,000	570,000
Restricted securities	2,378,100	2,561,900
Loans, net of allowance for loan losses of $7,259,337 and $7,324,310	450,251,305	463,808,457
Premises and equipment, net	34,059,110	32,528,350
Bank-owned life insurance	22,039,504	21,824,197
Foreclosed assets, net of valuation allowance of $1,755,615 and $1,870,285	6,021,003	6,573,398
Other assets	8,920,253	7,859,344
Total assets	890,838,778	907,498,704
Deposits:
Noninterest-bearing deposits	176,862,350	176,740,312
Savings deposits	272,963,549	268,252,782
Time deposits	297,414,596	308,822,642
Total deposits	747,240,495	753,815,736
Overnight repurchase agreements	26,339,287	35,945,800
Term repurchase agreements	1,281,372	1,279,574
Federal Home Loan Bank advances	25,000,000	25,000,000
Accrued expenses and other liabilities	2,750,768	2,157,558
Total liabilities	802,611,922	818,198,668
Commitments and contingencies
Stockholders' equity:
Common stock, $5 par value, 10,000,000 shares authorized; 4,959,009 and 4,959,009 shares issued and outstanding	24,795,045	24,795,045
Additional paid-in capital	16,391,845	16,391,845
Retained earnings	48,957,976	48,304,609
Accumulated other comprehensive loss, net	(1,918,010)	(191,463)
Total stockholders' equity	88,226,856	89,300,036
Total liabilities and stockholders' equity	$ 890,838,778	$ 907,498,704