CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $)	Mar. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Assets:
Cash and due from banks	$ 4,719,517	$ 5,137,888	$ 5,137,888
Interest bearing deposits in other banks	38,374,283	25,903,960	25,903,960
Investment securities available for sale	58,415,863	58,514,216	58,514,216
Mortgage loans to be sold	10,193,974	18,479,878	18,479,878
Loans	216,193,030	217,128,624
Less: Allowance for loan losses	(3,418,953)	(3,432,844)
Net loans	212,774,077	213,695,780
Premises and equipment, net	2,489,864	2,486,792	2,486,792
Accrued interest receivable	1,037,109	1,124,613	1,124,613
Other assets	642,883	67,519	67,519
Total assets	328,647,570	325,410,646	325,410,646
Deposits:
Non-interest bearing demand	86,883,466	83,447,675	83,447,675
Interest bearing demand	76,682,220	77,441,588	77,441,588
Money market accounts	52,807,591	54,450,828	54,450,828
Certificates of deposit $100,000 and over	42,410,373	40,903,886	42,410,373
Other time deposits	15,815,284	15,909,164	15,909,164
Other savings deposits	18,379,803	18,920,702	18,920,702
Total deposits	292,978,737	291,073,843	291,073,843
Accrued interest payable and other liabilities	1,395,147	406,361	406,361
Total liabilities	294,373,884	291,480,204	291,480,204
Shareholders' equity
Common Stock - No par value; 12,000,000 shares authorized; Shares issued 4,668,352 at March 31, 2013 and 4,665,690 at December 31, 2012; Shares outstanding 4,448,901 at March 31, 2013 and 4,446,239 shares at December 31, 2012
Additional paid in capital	28,516,151	28,474,951	28,474,951
Retained earnings	5,622,776	5,157,839	5,157,839
Treasury stock	(1,902,439)	(1,902,439)	(1,902,439)
Accumulated other comprehensive income, net of income taxes	2,037,198	2,200,091	2,200,091
Total shareholders' equity	34,273,686	33,930,442	33,930,442
Total liabilities and shareholders' equity	$ 328,647,570	$ 325,410,646	$ 325,410,646