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Equity Plans (Tables)
3 Months Ended
Nov. 29, 2012
Table Text Block [Abstract]  
Assumptions used in Black-Scholes option valuation model
 Assumptions used in the Black-Scholes model are presented below:

Quarter ended
 
November 29,
2012
 
December 1,
2011
Average expected life in years
 
5.0

 
5.1

Weighted-average expected volatility
 
62
%
 
67
%
Weighted-average risk-free interest rate
 
0.7
%
 
1.1
%

Schedule of restricted stock awards activity
Restricted Stock Awards granted for the first quarter of 2013 and 2012 were as follows:

Quarter ended
 
November 29,
2012
 
December 1,
2011
Service-based awards
 
2.2

 
1.8

Performance-based awards
 
1.2

 
1.9

Weighted-average grant-date fair values per share
 
$
5.73

 
$
5.17

Stock-based compensation expense
Stock-based Compensation Expense

Total compensation costs for our equity plans were as follows:
Quarter ended
 
November 29,
2012
 
December 1,
2011
Stock-based compensation expense by caption:
 
 
 
 
Cost of goods sold
 
$
6

 
$
5

Selling, general and administrative
 
9

 
11

Research and development
 
4

 
4

 
 
$
19

 
$
20

 
 
 
 
 
Stock-based compensation expense by type of award:
 
 
 
 
Stock options
 
$
13

 
$
12

Restricted stock awards
 
6

 
8

 
 
$
19

 
$
20