Consolidated Statements of Operations (USD $)	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Revenues:
Product sales	$ 14,218,766	$ 26,020,385
Contract and other	573,572	486,436
Total revenues	14,792,338	26,506,821
Cost of revenues	7,313,762	10,577,370
Gross profit	7,478,576	15,929,451
Operating expenses:
Selling, general and administrative	4,541,594	8,463,842
Research and development	1,659,673	2,483,938
Total operating expenses	6,201,267	10,947,780
Income from operations	1,277,309	4,981,671
Other income	33,895	46,967
Income from continuing operations before income taxes	1,311,204	5,028,638
Income tax (benefit) expense	(150,816)	75,190
Income from continuing operations	1,462,020	4,953,448
Income from discontinued operations		69,454
Net income	$ 1,462,020	$ 5,022,902
Net income per common share-continuing operations:
Basic	$ 0.05	$ 0.16
Diluted	$ 0.04	$ 0.15
Net income per common share-discontinued operations:
Basic
Diluted
Net income per common share:
Basic	$ 0.05	$ 0.16
Diluted	$ 0.04	$ 0.15
Weighted average common shares outstanding:
Basic	32,374,499	31,755,157
Diluted	33,015,955	32,722,632