Consolidated Statements of Operations - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Condensed Consolidated Statements Of Operations
Net sales	$ 164,003,040	$ 142,457,342
Cost of goods sold	104,408,326	90,456,484
Gross profit	59,594,714	52,000,858
Selling, general and administrative expenses	48,182,050	43,571,510
Operating income	11,412,664	8,429,348
Non-operating items:
Interest expense	(944,363)	(1,828,408)
Interest income	24,654	39,896
Interest expense, net	(919,709)	(1,788,512)
Other expense	(666,227)	(97,672)
Total other expense, net	(1,585,936)	(1,886,184)
Income before income tax expense	9,826,728	6,543,164
Income tax expense	1,727,962	1,029,556
Net income	$ 8,098,766	$ 5,513,608
Basic earnings per share	$ 2.42	$ 1.65
Diluted earnings per share	$ 2.31	$ 1.60