Condensed Consolidated Statements of Net Income and Comprehensive Income (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net sales	$ 10,282,665	$ 9,489,504
Costs and expenses:
Cost of goods sold	2,654,843	2,433,732
Distributor royalties and commissions	3,328,455	3,117,572
Selling, general and administrative	3,777,682	3,739,527
Total costs and expenses	9,760,980	9,290,831
Income from operations	521,685	198,673
Other income (expense):
Interest income	39,662	49,262
Interest expense	(6,105)	(5,412)
Other income (expense)	(70,906)	(5,428)
Gain on sale of fixed assets		434,549
Income before income taxes	484,336	671,644
Provision (benefit) for income taxes	(178,000)	48,000
Net income	662,336	623,644
Other comprehensive income (loss):
Foreign currency translation adjustment	(39,611)	22,211
Comprehensive income	$ 622,725	$ 645,855
Earnings per common share - Basic & Diluted (in dollars per share)	$ 0.38	$ 0.36
Weighted average shares (in shares)	1,746,000	1,746,000
Product [Member]
Net sales	$ 9,548,817	$ 8,810,997
Freight Income [Member]
Net sales	558,095	519,941
Product and Service, Other [Member]
Net sales	$ 175,753	$ 158,566