Consolidated Statements of Operations (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Consolidated Statements Of Operations
Net sales	$ 107,222,306	$ 89,576,777
Cost of goods sold	69,036,695	57,752,733
Gross profit	38,185,611	31,824,044
Selling, general and administrative expenses	30,791,150	25,944,948
Operating income	7,394,461	5,879,096
Interest:
Interest expense	(490,110)	(502,407)
Interest income	16,624	152,073
Interest expense, net	(473,486)	(350,334)
Other expense	(118,250)	(34,871)
Total other expense, net	(591,736)	(385,205)
Income before income tax expense	6,802,725	5,493,891
Income tax expense	2,013,720	1,490,986
Net income	$ 4,789,005	$ 4,002,905
Basic earnings per share	$ 1.48	$ 1.26
Diluted earnings per share	$ 1.36	$ 1.22