Consolidated Statements Of Changes In Stockholders' Equity (USD $)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance at Dec. 31, 2011	$ 41,017	$ 16,413,468	$ 11,019,046	$ 27,473,531
Balance, shares at Dec. 31, 2011	4,101,701
Cash dividend paid			(2,072,227)	(2,072,227)
Exercise of stock options	250	176,813		177,063
Exercise of stock options, shares	24,985
Stock-based compensation		212,459		212,459
Tax benefit (expense) from exercise of stock options		32,458		32,458
Common stock repurchases	(39)	(15,429)	(22,967)	(38,435)
Common stock repurchases, shares	(3,867)			(3,867)
Issuance of restricted stock	168	(168)
Issuance of restricted stock, shares	16,820
Shares issued under Employee Stock Purchase Plan	81	83,644		83,725
Shares issued under Employee Stock Purchase Plan, shares	8,104
Net income			1,016,364	1,016,364
Balance at Dec. 31, 2012	41,477	16,903,245	9,940,216	26,884,938
Balance, shares at Dec. 31, 2012	4,147,743
Exercise of stock options	55	39,300		39,355
Exercise of stock options, shares	5,515
Stock-based compensation		270,074		270,074
Tax benefit (expense) from exercise of stock options		(1,893)		(1,893)
Common stock repurchases	(8)	(3,228)	(4,273)	(7,509)
Common stock repurchases, shares	(809)			(809)
Issuance of restricted stock	183	(183)
Issuance of restricted stock, shares	18,290
Shares issued under Employee Stock Purchase Plan	72	63,300		63,372
Shares issued under Employee Stock Purchase Plan, shares	7,212
Net income			1,016,712	1,016,712
Balance at Dec. 31, 2013	$ 41,779	$ 17,270,615	$ 10,952,655	$ 28,265,049
Balance, shares at Dec. 31, 2013	4,177,951