Condensed Consolidated Statement of Stockholders' Equity (Unaudited) (USD $)	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at Dec. 31, 2013	$ 11,983,790	$ 678,360	$ 57,655,031	$ (61,225,185)	$ 43,769,485	$ (2,506,248)	$ 50,355,233
Net income					1,301,426		1,301,426
Change in unrealized gain (loss) on available-for-sale securities, net of income taxes						807,565	807,565
Preferred stock discount accretion	16,210				(16,210)
Preferred stock dividends					(230,000)		(230,000)
Stock award plans		280	(226,061)	377,312			151,531
Proceeds from issuance of common stock			(6,782,011)	22,664,985			15,882,974
Balance at Mar. 31, 2014	12,000,000	678,640	50,646,959	(38,182,888)	44,824,701	(1,698,683)	68,268,729
Balance at Dec. 31, 2014		682,320	50,366,546	(37,673,289)	48,549,691	(448,421)	61,476,847
Net income					1,329,544		1,329,544
Change in unrealized gain (loss) on available-for-sale securities, net of income taxes						491,723	491,723
Dividends on common stock ($0.05 per share)					(218,798)		(218,798)
Stock award plans			(211,694)	362,912			151,218
Stock options exercised		2,130	109,174				111,304
Balance at Mar. 31, 2015		$ 684,450	$ 50,264,026	$ (37,310,377)	$ 49,660,437	$ 43,302	$ 63,341,838