Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 27, 2015	Jun. 28, 2014	Jun. 27, 2015	Jun. 28, 2014
Revenue:
Product	$ 114,779	$ 126,829	$ 363,696	$ 364,669
Service	19,133	18,642	56,755	56,555
Total revenue	133,912	145,471	420,451	421,224
Cost of sales:
Product	69,205	76,605	220,428	220,610
Service	11,498	11,171	33,441	32,846
Total cost of sales	80,703	87,776	253,869	253,456
Gross profit	53,209	57,695	166,582	167,768
Operating expenses:
Selling and marketing	20,475	22,644	62,033	66,538
General and administrative	11,486	11,384	38,482	38,568
Research and development	5,821	6,269	17,074	18,763
Total operating expenses	37,782	40,297	117,589	123,869
Income from operations	15,427	17,398	48,993	43,899
Interest expense, net	(155)	(146)	(595)	(511)
Other expense, net	(126)	(59)	(1,492)	(562)
Income before income taxes	15,146	17,193	46,906	42,826
Provision for income taxes	4,363	3,049	10,631	11,758
Net income	$ 10,783	$ 14,144	$ 36,275	$ 31,068
Basic-
Earnings per share (in dollars per share)	$ 0.72	$ 0.94	$ 2.42	$ 2.04
Weighted average number of common shares outstanding - basic (in shares)	14,905	15,117	15,000	15,238
Diluted-
Earnings per share (in dollars per share)	$ 0.72	$ 0.92	$ 2.39	$ 2.01
Weighted average number of common shares outstanding - diluted (in shares)	15,070	15,294	15,165	15,422
Dividends declared per share (in dollars per share)	$ 0.30	$ 0.30	$ 0.90	$ 0.90