Condensed Consolidated Statements of Net Income (Loss) and Comprehensive Income (Loss) (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Net Revenues	$ 9,489,504	$ 10,003,239
Costs and expenses:
Cost of goods sold	2,433,732	2,349,742
Distributor royalties and commissions	3,117,572	3,391,745
Selling, general and administrative	3,739,527	4,485,895
Total costs and expenses	9,290,831	10,227,382
Income (loss) from operations	198,673	(224,143)
Other income (expense):
Interest income	49,262	23,952
Interest expense	(5,412)	(31,565)
Other income (expense)	(5,428)	6,651
Gain on sale of fixed assets	434,549	3,800
Income (loss) before income taxes	671,644	(221,305)
Provision for income taxes	48,000	17,000
Net income (loss)	623,644	(238,305)
Other comprehensive income (loss):
Foreign currency translation adjustment	22,211	25,228
Comprehensive income (loss)	$ 645,855	$ (213,077)
Basic earnings (loss) per share (in dollars per share)	$ 0.36	$ (0.13)
Weighted average shares (in shares)	1,746,000	1,845,000
Diluted earnings (loss) per share (in dollars per share)	$ 0.36	$ (0.13)
Weighted average shares (in shares)	1,746,000	1,845,000
Product [Member]
Net Revenues	$ 8,810,997	$ 9,391,381
Freight Income [Member]
Net Revenues	519,941	611,858
Product and Service, Other [Member]
Net Revenues	$ 158,566