Condensed Consolidated Statements of Operations (USD $)	3 Months Ended		6 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
Net sales	$ 8,686,284	$ 12,472,200	$ 19,785,390	$ 24,824,192
Cost of sales	5,310,338	7,517,694	12,334,312	14,940,334
Gross profit	3,375,946	4,954,506	7,451,078	9,883,858
Operating expenses:
Selling, general and administrative expense	3,724,704	3,923,733	7,338,157	7,795,026
Engineering & development expense	1,059,244	1,311,300	2,026,507	2,672,892
Operating Expenses	4,783,948	5,235,033	9,364,664	10,467,918
Operating loss	(1,408,002)	(280,527)	(1,913,586)	(584,060)
Interest income	(18,955)	(7,031)	(49,991)	(30,759)
Other expense (income)	0	(13,993)	(5,691)	(28,830)
Loss before income taxes	(1,389,047)	(259,503)	(1,857,904)	(524,471)
Income tax expense	8,000	19,000	16,000	38,000
Net loss	$ (1,397,047)	$ (278,503)	$ (1,873,904)	$ (562,471)
Loss per share:
Earnings Per Share, Basic	$ (0.31)	$ (0.06)	$ (0.42)	$ (0.13)
Earnings Per Share, Diluted	$ (0.31)	$ (0.06)	$ (0.42)	$ (0.13)
Weighted average shares outstanding:
Basic	4,494,735	4,475,603	4,489,460	4,483,776
Diluted	4,494,735	4,475,603	4,489,460	4,483,776