Consolidated Statements of Operations - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Condensed Consolidated Statements Of Operations
Net sales	$ 142,457,342	$ 137,321,395
Cost of goods sold	90,456,484	86,672,413
Gross profit	52,000,858	50,648,982
Selling, general and administrative expenses	43,571,510	43,192,076
Operating income	8,429,348	7,456,906
Non operating items:
Interest expense	(1,828,408)	(1,891,042)
Interest income	39,896	32,818
Interest expense, net	(1,788,512)	(1,858,224)
Other expense	(97,672)	(67,458)
Total other expense, net	(1,886,184)	(1,925,682)
Income before income tax expense	6,543,164	5,531,224
Income tax expense	1,029,556	932,874
Net income	$ 5,513,608	$ 4,598,350
Basic earnings per share	$ 1.65	$ 1.36
Diluted earnings per share	$ 1.60	$ 1.30