Consolidated Statements of Operations (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Consolidated Statements Of Operations
Net sales	$ 89,576,777	$ 84,369,770
Cost of goods sold	57,752,733	54,623,328
Gross profit	31,824,044	29,746,442
Selling, general and administrative expenses	25,944,948	24,385,922
Operating income	5,879,096	5,360,520
Interest:
Interest expense	(502,407)	(443,657)
Interest income	152,073	179,259
Interest expense, net	(350,334)	(264,398)
Other expense	(34,871)	(99,076)
Total other expense, net	(385,205)	(363,474)
Income before income tax expense	5,493,891	4,997,046
Income tax expense	1,490,986	1,447,815
Net income	$ 4,002,905	$ 3,549,231
Basic earnings per share	$ 1.26	$ 1.14
Diluted earnings per share	$ 1.22	$ 1.13