Condensed Consolidated Statements of Net Income (Loss) and Comprehensive Income (Loss) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Product sales	$ 14,165,463	$ 14,894,640	$ 31,054,921	$ 32,509,480
Handling & freight income	1,259,945	1,886,064	3,227,751	4,014,868
Net sales	15,425,408	16,780,704	34,282,672	36,524,348
Costs and expenses:
Cost of products sold	3,057,940	3,220,860	6,961,798	7,121,441
Distributor royalties and commissions	5,617,245	6,319,613	12,620,448	13,774,773
Selling, general and administrative	6,972,599	7,021,658	14,488,088	14,495,904
Total costs and expenses	15,647,784	16,562,131	34,070,334	35,392,118
Income (loss) from operations	(222,376)	218,573	212,338	1,132,230
Other income (expense):
Interest income	38,668	40,863	75,832	50,177
Interest expense	(18,493)	(31,295)	(35,995)	(62,214)
Other income / (expense)	(64,544)	(38,564)	(91,119)	(61,232)
Income (loss) before income taxes	(266,745)	189,577	161,056	1,058,961
Provision (benefit) for income taxes	(53,000)	87,000	180,000	424,000
Net income (loss)	(213,745)	102,577	(18,944)	634,961
Other comprehensive income (loss):
Foreign currency translation adjustment	(48,944)	(51,228)	(65,717)	58,544
Comprehensive income (loss)	$ (262,689)	$ 51,349	$ (84,661)	$ 693,505
Earnings (loss) per common share - Basic (in dollars per share)	$ (0.02)	$ 0.01	$ 0.00	$ 0.05
Weighted average shares (in shares)	12,616,000	12,507,000	12,617,000	12,499,000
Earnings (loss) per common share - Diluted (in dollars per share)	$ (0.02)	$ 0.01	$ 0.00	$ 0.05
Weighted average shares (in shares)	12,708,000	12,678,000	12,707,000	12,658,000
Cash dividends declared per common share (in dollars per share)	$ 0.02	$ 0.02	$ 0.02	$ 0.02