Consolidated Statements of Net Loss and Comprehensive Loss - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Net sales	$ 35,055,315	$ 36,115,741
Costs and expenses:
Cost of goods sold	9,557,116	9,709,743
Distributor royalties and commissions	11,259,071	11,749,604
Selling, general, and administrative	14,798,586	16,520,885
Loss from operations	(559,458)	(1,864,491)
Other income (expense):
Interest income	177,810	93,054
Interest expense	(47,180)	(95,556)
Other income	17,922	62,347
Gain (loss) on sale of fixed assets	434,549	(695)
Income (loss) before income taxes	23,643	(1,805,341)
Provision for income taxes	468,000	98,000
Net loss available to common shareholders	(444,357)	(1,903,341)
Other comprehensive income (loss):
Foreign currency translation adjustment	44,775	(124,441)
Comprehensive loss	$ (399,582)	$ (2,027,782)
Loss per common share - Basic (in dollars per share)	$ (0.25)	$ (1.03)
Weighted average shares (in shares)	1,746,000	1,845,000
Loss per common share - Diluted (in dollars per share)	$ (0.25)	$ (1.03)
Weighted average shares (in shares)	1,746,000	1,845,000
Product [Member]
Net sales	$ 32,298,533	$ 33,918,169
Freight Income [Member]
Net sales	1,973,320	2,197,572
Product and Service, Other [Member]
Net sales	$ 783,462