v2.4.0.6
Equity Plans (Tables)
 6 Months Ended
Mar. 01, 2012
Notes to Financial Statements [Abstract]  
Assumptions used in Black-Scholes option valuation model
 Assumptions used in the Black-Scholes model are presented below:

 
 
Quarter Ended
 
Six Months Ended
 
 
March 1,
2012
 
March 3,
2011
 
March 1,
2012
 
March 3,
2011
Average expected life in years
 
5.1

 
5.0

 
5.1

 
5.1

Weighted-average expected volatility
 
66
%
 
55
%
 
66
%
 
56
%
Weighted-average risk-free interest rate
 
0.9
%
 
2.1
%
 
1.0
%
 
1.8
%
Restricted stock awards
 Restricted Stock Awards granted for the second quarters and first six months of 2012 and 2011 were as follows:

 
 
Quarter Ended
 
Six Months Ended
 
 
March 1,
2012
 
March 3,
2011
 
March 1,
2012
 
March 3,
2011
Service-based awards
 
2.0

 
3.1

 
3.8

 
4.3

Performance-based awards
 
—

 
—

 
1.9

 
1.2

Weighted-average grant-date fair values per share
 
$
5.84

 
$
9.62

 
$
5.40

 
$
8.74
Stock-based compensation expense
Stock-based Compensation Expense

Total compensation costs for our equity plans were as follows:

 
 
Quarter Ended
 
Six Months Ended
 
 
March 1,
2012
 
March 3,
2011
 
March 1,
2012
 
March 3,
2011
Stock-based compensation expense by caption:
 
 
 
 
 
 
 
 
Cost of goods sold
 
$
7

 
$
6

 
$
12

 
$
10

Selling, general and administrative
 
18

 
9

 
29

 
20

Research and development
 
5

 
4

 
9

 
8

 
 
$
30

 
$
19

 
$
50

 
$
38

 
 
 
 
 
 
 
 
 
Stock-based compensation expense by type of award:
 
 

 
 

 
 
 
 
Stock options
 
$
19

 
$
11

 
$
31

 
$
21

Restricted stock awards
 
11

 
8

 
19

 
17

 
 
$
30

 
$
19

 
$
50

 
$
38