Equity Plans (Tables)

6 Months Ended

Feb. 28, 2013

Table Text Block [Abstract]

Assumptions used in Black-Scholes option valuation model

 Assumptions used in the Black-Scholes model are presented below:

	Quarter Ended				Six Months Ended
	February 28, 2013		March 1, 2012		February 28, 2013		March 1, 2012
Average expected life in years	5.1		5.1		5.1		5.1
Weighted-average expected volatility	59	%	66	%	60	%	66	%
Weighted-average risk-free interest rate	0.7	%	0.9	%	0.7	%	1.0	%

Schedule of restricted stock awards activity

Restricted Stock Awards granted for the second quarters and first six months of 2013 and 2012 were as follows:

	Quarter Ended				Six Months Ended
	February 28, 2013		March 1, 2012		February 28, 2013		March 1, 2012
Service-based awards	3.2		2.0		5.4		3.8
Performance-based awards	—		—		1.2		1.9
Weighted-average grant-date fair values per share	$	6.69	$	5.84	$	6.20	$	5.40

Stock-based compensation expense

Stock-based Compensation Expense

Total compensation costs for our equity plans were as follows:

	Quarter Ended				Six Months Ended
	February 28, 2013		March 1, 2012		February 28, 2013		March 1, 2012
Stock-based compensation expense by caption:
Cost of goods sold	$	7	$	7	$	13	$	12
Selling, general and administrative	9		18		18		29
Research and development	5		5		9		9
	$	21	$	30	$	40	$	50
Stock-based compensation expense by type of award:
Stock options	$	14	$	19	$	27	$	31
Restricted stock awards	7		11		13		19
	$	21	$	30	$	40	$	50