CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) (USD $)	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income [Member]	Total
Balance, beginning at Dec. 31, 2012	$ 28,474,951	$ 5,157,839	$ (1,902,439)	$ 2,200,091	$ 33,930,442
Net income		998,805			998,805
Other comprehensive income (loss)				(162,893)	(162,893)
Exercise of stock options	22,733				22,733
Stock-based compensation expense	18,467				18,467
Cash dividends		(533,868)			(533,868)
Balance, ending at Mar. 31, 2013	28,516,151	5,622,776	(1,902,439)	2,037,198	34,273,686
Balance, beginning at Dec. 31, 2013	28,678,150	7,007,532	(1,902,439)	955,900	34,739,143
Net income		955,798			955,798
Other comprehensive income (loss)				119,125	119,125
Exercise of stock options	26,050				26,050
Stock-based compensation expense	18,390				18,390
Cash dividends		(579,980)			(579,980)
Balance, ending at Mar. 31, 2014	$ 28,722,590	$ 7,383,350	$ (1,902,439)	$ 1,075,025	$ 35,278,526