CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Net sales	$ 61,683,201	$ 53,372,698	$ 41,547,788
Cost of sales	30,865,556	26,723,946	21,509,126
Gross profit	30,817,645	26,648,752	20,038,662
Operating expenses:
Marketing and selling	18,244,034	18,814,445	12,203,733
Research and development	1,190,095	1,008,767	1,235,367
General and administrative	8,170,468	8,502,956	6,391,003
Total operating expenses	27,604,597	28,326,168	19,830,103
Income (loss) from operations	3,213,048	(1,677,416)	208,559
Other income (expense):
Interest income	43,243	139,859	239,171
Other expense	(84,458)	(123,901)
Interest expense	(89,545)	(277,008)	(177,401)
Total other income (loss)	(130,760)	(261,050)	61,770
Income (loss) before income taxes	3,082,288	(1,938,466)	270,329
Income tax benefit (expense)	(1,031,804)	623,162	(523,864)
Net income (loss)	$ 2,050,484	$ (1,315,304)	$ (253,535)
Net income (loss) per common share - basic (in dollars per share)	$ 0.17	$ (0.11)	$ (0.02)
Net income (loss) per common share - diluted (in dollars per share)	$ 0.17	$ (0.11)	$ (0.02)
Weighted average number of common shares outstanding - basic (in shares)	12,032,113	12,217,900	12,181,549
Weighted average number of common shares outstanding - diluted (in shares)	12,339,500	12,217,900	12,181,549