Condensed Consolidated Statements of Net Income (Loss) and Comprehensive Income (Loss) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Product sales	$ 11,835,116	$ 12,042,561
Handling & freight income	942,666	993,889
Net sales	12,777,782	13,036,450
Costs and expenses:
Cost of products sold	2,835,525	2,984,104
Distributor royalties and commissions	4,498,553	4,624,375
Selling, general and administrative	4,926,279	5,609,268
Total costs and expenses	12,260,357	13,217,747
Income (loss) from operations	517,425	(181,297)
Other income (expense):
Interest income	25,526	27,357
Interest expense	(24,841)	(26,401)
Other income	32,683	113,681
Income (loss) before income taxes	550,793	(66,660)
Provision (benefit) for income taxes	27,000	(23,000)
Net income (loss)	523,793	(43,660)
Other comprehensive income (loss):
Foreign currency translation adjustment	25,472	(74,551)
Comprehensive income (loss)	$ 549,265	$ (118,211)
Earnings (loss) per common share - Basic (in dollars per share)	$ 0.28	$ (0.02)
Weighted average shares (in shares)	1,845,000	1,846,000
Earnings (loss) per common share - Diluted (in dollars per share)	$ 0.28	$ (0.02)
Weighted average shares (in shares)	1,846,000	1,846,000