Condensed Consolidated Statements of Income (USD $)	3 Months Ended		9 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Net sales	$ 10,950,550	$ 13,090,839	$ 34,755,400	$ 35,564,834
Cost of sales	7,074,983	7,493,908	21,368,168	20,657,065
Gross profit	3,875,567	5,596,931	13,387,232	14,907,769
Operating expenses:
Selling, general and administrative expense	4,223,274	4,161,773	12,368,043	12,860,802
Engineering & development expense	1,514,525	1,423,052	4,428,109	4,164,765
Patent litigation expense	5,125,008	0	5,374,834	0
Operating Expenses	10,862,807	5,584,825
Operating loss	(6,987,240)	12,106	(8,783,754)	(2,117,798)
Interest income	(43,237)	(50,839)	(175,685)	(155,540)
Other expense (income)	21,809	11,906	10,019	14,818
Loss before income taxes	(6,965,812)	51,039	(8,618,088)	(1,977,076)
Income tax benefit	2,548,000	34,000	2,063,000	(607,000)
Net loss	$ (9,513,812)	$ 17,039	$ (10,681,088)	$ (1,370,076)
Loss per share:
Earnings Per Share, Basic	$ (2.12)	$ 0.00	$ (2.38)	$ (0.3)
Earnings Per Share, Diluted	$ (2.12)	$ 0.00	$ (2.38)	$ (0.3)
Weighted average shares outstanding:
Basic	4,491,998	4,517,475	4,484,676	4,546,796
Diluted	4,491,998	4,567,856	4,484,676	4,546,796