Equity Plans (Tables)

9 Months Ended

Jun. 02, 2016

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Assumptions used in Black-Scholes option valuation model

Stock options granted and assumptions used in the Black-Scholes option valuation model were as follows:

	Quarter ended						Nine months ended
	June 2, 2016			June 4, 2015			June 2, 2016			June 4, 2015
Stock options granted	1			—			8			8
Weighted-average grant-date fair value per share	$	4.92		$	10.89		$	6.96		$	14.86
Average expected life in years	5.6			5.6			5.5			5.6
Weighted-average expected volatility	51		%	42		%	47		%	45		%
Weighted-average risk-free interest rate	1.3		%	1.6		%	1.7		%	1.7		%

Schedule restricted stock awards activity

Restricted Stock Awards activity was as follows:

	Quarter ended				Nine months ended
	June 2, 2016		June 4, 2015		June 2, 2016		June 4, 2015
Restricted stock awards granted	—		—		9		6
Weighted-average grant-date fair value per share	$	10.35	$	27.34	$	15.75	$	33.93

Stock-based compensation expense by caption and type of award

	Quarter ended				Nine months ended
	June 2, 2016		June 4, 2015		June 2, 2016		June 4, 2015
Stock-based compensation expense by caption
Cost of goods sold	$	20	$	17	$	58	$	48
Selling, general, and administrative	15		15		52		48
Research and development	12		11		38		31
	$	47	$	43	$	148	$	127
Stock-based compensation expense by type of award
Stock options	$	19	$	20	$	61	$	61
Restricted stock awards	28		23		87		66
	$	47	$	43	$	148	$	127