Condensed Consolidated Statements of Income (USD $)	3 Months Ended		9 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net sales	$ 11,721,956	$ 10,950,550	$ 36,546,149	$ 34,755,400
Cost of sales	7,057,661	7,074,983	21,997,996	21,368,168
Gross profit	4,664,295	3,875,567	14,548,153	13,387,232
Operating expenses:
Selling, general and administrative expense	3,854,289	4,223,274	11,649,315	12,368,043
Engineering & development expense	1,286,105	1,514,525	3,958,997	4,428,109
Patent litigation expense	0	5,125,008	0	5,374,834
Operating Expenses	5,140,394	10,862,807	15,608,312	22,170,986
Operating loss	(476,099)	(6,987,240)	(1,060,159)	(8,783,754)
Interest income	(4,277)	(43,237)	(35,036)	(175,685)
Other expense (income)	6,198	21,809	(22,632)	10,019
Loss before income taxes	(478,020)	(6,965,812)	(1,002,491)	(8,618,088)
Income tax expense	19,000	2,548,000	57,000	2,063,000
Net loss	$ (497,020)	$ (9,513,812)	$ (1,059,491)	$ (10,681,088)
Loss per share:
Earnings Per Share, Basic	$ (0.11)	$ (2.12)	$ (0.24)	$ (2.38)
Earnings Per Share, Diluted	$ (0.11)	$ (2.12)	$ (0.24)	$ (2.38)
Weighted average shares outstanding:
Basic	4,477,651	4,491,998	4,481,737	4,484,676
Diluted	4,477,651	4,491,998	4,481,737	4,484,676