Consolidated Statements Of Operations (USD $) In Thousands, except Share data	3 Months Ended		9 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Consolidated Statements Of Operations
Sales	$ 46,368	$ 35,292	$ 140,165	$ 92,389
Cost of sales	25,812	20,392	78,832	60,039
Gross profit	20,556	14,900	61,333	32,350
Operating expenses:
Selling, general and administrative	4,114	4,284	13,864	11,997
Research and development	2,820	2,842	8,985	6,839
Bad debt expense (recovery)	112	84	145	(336)
Total operating expenses	7,046	7,210	22,994	18,500
Gain (loss) on disposal of equipment	1		17	(184)
Income from operations	13,511	7,690	38,356	13,666
Other income (expense):
Interest expense		(51)	(43)	(186)
Interest income	37	76	166	178
Foreign exchange gains (losses)	(10)	(125)	36	(21)
Other, net	(2)	(3)	(39)	(171)
Total other income (expense), net	25	(103)	120	(200)
Income before income taxes	13,536	7,587	38,476	13,466
Income tax expense	4,329	2,510	12,354	4,480
Net income	$ 9,207	$ 5,077	$ 26,122	$ 8,986
Basic earnings per common share	$ 1.47	$ 0.84	$ 4.23	$ 1.49
Diluted earnings per common share	$ 1.44	$ 0.81	$ 4.15	$ 1.45
Weighted average common shares outstanding - Basic	6,257,336	6,032,373	6,180,576	6,024,589
Weighted average common shares outstanding - Diluted	6,375,156	6,240,412	6,293,804	6,216,823