CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019
Revenues	$ 150,450	$ 127,109	$ 445,488	$ 400,225
Cost of sales	81,027	68,329	236,398	211,073
Gross profit	69,423	58,780	209,090	189,152
Selling, general and administrative	27,905	28,724	85,723	87,626
Research and development	30,547	28,229	87,906	87,609
Operating expenses	58,452	56,953	173,629	175,235
Income from operations	10,971	1,827	35,461	13,917
Interest income	1,374	3,956	6,888	11,647
Interest expense	(446)	(632)	(1,690)	(1,137)
Income before income taxes	11,899	5,151	40,659	24,427
Provision for income taxes	690	3,864	3,985	19,106
Share of results of equity-method investee, net of tax	58	0	158	72
Net income	$ 11,151	$ 1,287	$ 36,516	$ 5,249
Net income per share:
Basic (in dollars per share)	$ 0.18	$ 0.02	$ 0.58	$ 0.08
Diluted (in dollars per share)	$ 0.18	$ 0.02	$ 0.57	$ 0.08
Weighted average shares outstanding:
Basic (in shares)	62,313	64,683	63,200	65,914
Diluted (in shares)	62,833	65,431	63,755	66,597