Consolidated Statements of Operations - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Consolidated Statements Of Operations
Net sales	$ 109,811,768	$ 107,222,306
Cost of goods sold	70,250,550	69,036,695
Gross profit	39,561,218	38,185,611
Selling, general and administrative expenses	32,214,212	30,791,150
Operating income	7,347,006	7,394,461
Interest:
Interest expense	(570,080)	(490,110)
Interest income	4,868	16,624
Interest expense, net	(565,212)	(473,486)
Other expense	(167,397)	(118,250)
Total other expense, net	(732,609)	(591,736)
Income before income tax expense	6,614,397	6,802,725
Income tax expense	1,820,872	2,013,720
Net income	$ 4,793,525	$ 4,789,005
Basic earnings per share	$ 1.44	$ 1.48
Diluted earnings per share	$ 1.30	$ 1.36