Consolidated Statements of Income (unaudited) (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Jul. 02, 2011	Jul. 03, 2010	Jul. 02, 2011	Jul. 03, 2010
Revenue:
Product	$ 100,363	$ 70,677	$ 287,293	$ 224,718
Service	16,469	14,267	48,476	43,456
Total revenue	116,832	84,944	335,769	268,174
Cost of sales:
Product	58,368	44,016	165,697	138,605
Service	8,634	7,679	24,663	22,610
Total cost of sales	67,002	51,695	190,360	161,215
Gross profit	49,830	33,249	145,409	106,959
Operating expenses:
Selling and marketing	17,462	16,007	51,192	48,263
General and administrative	12,892	14,602	31,712	32,483
Research and development	3,852	4,154	10,538	11,206
Total operating expenses	34,206	34,763	93,442	91,952
Income (loss) from operations	15,624	(1,514)	51,967	15,007
Interest expense	(195)	(115)	(1,049)	(1,071)
Interest income	121	162	225	281
Other income (expense), net	856	(96)	973	(419)
Income (loss) before income taxes	16,406	(1,563)	52,116	13,798
Income tax provision (benefit)	5,453	(1,568)	16,066	3,782
Net income	$ 10,953	$ 5	$ 36,050	$ 10,016
Basic-
Earnings per share (in dollars per share)	$ 0.70	$ 0.00	$ 2.34	$ 0.61
Weighted average number of common shares outstanding - basic (in shares)	15,570	16,315	15,435	16,454
Diluted-
Earnings per share (in dollars per share)	$ 0.69	$ 0.00	$ 2.29	$ 0.61
Weighted average number of common shares outstanding - diluted (in shares)	15,789	16,378	15,718	16,509