CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	3 Months Ended		6 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2012	Mar. 31, 2011
Net sales	$ 11,320,988	$ 10,324,162	$ 26,748,215	$ 23,187,108
Cost of sales	7,721,672	7,102,764	18,139,136	15,618,472
Gross profit	3,599,316	3,221,398	8,609,079	7,568,636
Selling, general and administrative expenses	2,991,170	3,513,871	6,289,907	7,288,575
Research and development expenses	806,211	1,142,913	1,618,593	2,239,692
Income (loss) from operations	(198,065)	(1,435,386)	700,579	(1,959,631)
Other income (expense) :
Interest income	1,147	1,616	2,835	3,175
Foreign currency gain (loss)	(309)	(27,060)	16,570	4,463
Total other income (expense)	838	(25,444)	19,405	7,638
Income (loss) before tax provision	(197,227)	(1,460,830)	719,984	(1,951,993)
Current tax expense	36,047	51,725	72,395	99,056
Deferred tax expense (benefit)	113,907	(69,188)	550,838	130,538
Net income (loss)	$ (347,181)	$ (1,443,367)	$ 96,751	$ (2,181,587)
Net income (loss) per share:
Basic and diluted (in dollars per share)	$ (0.03)	$ (0.14)	$ 0.01	$ (0.22)