Condensed Consolidated Statements of Net Income and Comprehensive Income (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Product sales	$ 15,241,597	$ 13,571,674	$ 46,296,517	$ 46,081,154
Handling & freight income	1,297,867	1,704,862	4,525,618	5,719,730
Net sales	16,539,464	15,276,536	50,822,135	51,800,884
Costs and expenses:
Cost of products sold	3,529,027	3,052,687	10,490,825	10,174,128
Distributor royalties and commissions	5,974,652	5,737,908	18,595,100	19,512,681
Selling, general and administrative	6,633,771	6,517,747	21,121,858	21,013,651
Total costs and expenses	16,137,450	15,308,342	50,207,783	50,700,460
Income (loss) from operations	402,014	(31,806)	614,352	1,100,424
Other income (expense):
Interest income	37,240	36,681	113,072	86,858
Interest expense	(22,187)	(20,124)	(58,182)	(82,338)
Other income / (expense)	28,637	437,745	(62,482)	376,513
Income before income taxes	445,704	422,496	606,760	1,481,457
Provision for income taxes	153,000	135,000	333,000	559,000
Net income	292,704	287,496	273,760	922,457
Other comprehensive income (loss):
Foreign currency translation adjustment	30,674	44,266	(35,043)	102,810
Comprehensive income	$ 323,378	$ 331,762	$ 238,717	$ 1,025,267
Earnings per common share - Basic (in dollars per share)	$ 0.02	$ 0.02	$ 0.02	$ 0.07
Weighted average shares (in shares)	12,616,000	12,480,000	12,617,000	12,499,000
Earnings per common share - Diluted (in dollars per share)	$ 0.02	$ 0.02	$ 0.02	$ 0.07
Weighted average shares (in shares)	12,842,000	12,636,000	12,785,000	12,657,000
Cash dividends declared per common share (in dollars per share)	$ 0	$ 0	$ 0.02	$ 0.02