Condensed Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Revenues:
Product sales	$ 4,753,898	$ 3,256,564	$ 10,657,412	$ 11,655,451
Contract and other	288,271	249,351	808,263	722,122
Total revenues	5,042,169	3,505,915	11,465,675	12,377,573
Cost of revenues	2,601,731	1,804,905	6,095,413	6,020,601
Gross profit	2,440,438	1,701,010	5,370,262	6,356,972
Operating expenses:
Selling, general and administrative	1,568,226	1,286,095	5,305,012	4,154,314
Research and development	632,416	519,991	1,791,253	1,567,113
Total operating expenses	2,200,642	1,806,086	7,096,265	5,721,427
Income (loss) from operations	239,796	(105,076)	(1,726,003)	635,545
Other income	30,512	31,863	95,469	88,987
Income (loss) from operations before income taxes	270,308	(73,213)	(1,630,534)	724,532
Income tax benefit	(6,614)	(9,266)	(862,720)	(7,666)
Net income (loss)	$ 276,922	$ (63,947)	$ (767,814)	$ 732,198
Net income (loss) per common share - basic and diluted (in dollars per share)	$ 0.01	$ 0	$ (0.02)	$ 0.02
Weighted average common shares outstanding:
Basic (in shares)	31,798,853	33,152,714	32,028,153	33,214,242
Diluted (in shares)	31,861,308	33,152,714	32,028,153	33,738,616
Cash dividends declared per common share (in dollars per share)	$ 0.01		$ 0.03