Quarterly Data (unaudited) (Details) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Quarterly Data [Line Items]
Interest income	$ 4,513,506	$ 4,760,392	$ 4,576,019	$ 4,603,114	$ 5,174,178	$ 4,735,311	$ 4,817,353	$ 4,626,037	$ 18,453,031	$ 19,352,879	$ 20,493,736
Interest expense	772,240	869,041	919,565	961,705	1,081,424	1,172,398	1,217,231	1,313,774	3,522,551	4,784,827	6,361,868
Net interest income before provision for loan losses	3,741,266	3,891,351	3,656,454	3,641,409	4,092,754	3,562,913	3,600,122	3,312,263	14,930,480	14,568,052	14,131,868
Provision for loan losses	0	0	0	300,000	330,000	100,000	0	0	300,000	430,000	445,000
Net interest income after provision for loan losses	3,741,266	3,891,351	3,656,454	3,341,409	3,762,754	3,462,913	3,600,122	3,312,263	14,630,480	14,138,052	13,686,868
Noninterest income	616,747	269,968	697,305	355,499	241,420	258,652	252,022	267,386	1,939,519	1,019,480	1,182,887
Noninterest expenses	3,704,211	3,464,571	3,701,728	2,975,880	3,477,359	3,203,019	3,423,359	3,074,132	13,846,390	13,177,869	13,651,503
Income before income taxes	653,802	696,748	652,031	721,028	526,815	518,546	428,785	505,517	2,723,609	1,979,663	1,218,252
Income tax expense	249,700	268,200	256,000	268,900	156,100	154,300	118,200	149,000	1,042,800	577,600	188,200
Net income	404,102	428,548	396,031	452,128	370,715	364,246	310,585	356,517	1,680,809	1,402,063	1,030,052
Preferred stock dividend requirement	375,000	375,000	375,000	375,000	375,000	308,893	280,031	265,856	1,500,000	1,229,780	651,119
Accretion on preferred stock dividends	17,846	17,845	17,845	17,845	17,845	16,370	15,241	14,468
Net income available to common stockholders	$ 11,256	$ 35,703	$ 3,186	$ 59,283	$ (22,130)	$ 38,983	$ 15,313	$ 76,193	$ 109,428	$ 108,359	$ 342,215
Earnings per common share:
Basic (in dollars per share)	$ 0	$ 0.01	$ 0	$ 0.01	$ 0	$ 0.01	$ 0	$ 0.01	$ 0.02	$ 0.02	$ 0.05
Diluted (in dollars per share)	$ 0	$ 0.01	$ 0	$ 0.01	$ 0	$ 0.01	$ 0	$ 0.01	$ 0.02	$ 0.02	$ 0.05