v2.4.1.9
Equity Plans (Tables)
3 Months Ended
Dec. 04, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Assumptions used in Black-Scholes option valuation model

Quarter Ended
 
December 4,
2014
 
November 28,
2013
Stock options granted
 
1

 
2

Weighted-average grant-date fair value per share
 
$13.20
 
$7.58
Average expected life in years
 
5.7

 
4.8

Weighted-average expected volatility
 
47
%
 
50
%
Weighted-average risk-free interest rate
 
1.6
%
 
1.3
%

Schedule of restricted stock awards activity
Restricted Stock Awards activity for the first quarters of 2015 and 2014 are summarized as follows:

Quarter Ended
 
December 4,
2014
 
November 28,
2013
Restricted stock awards granted
 
2

 
2

Weighted-average grant-date fair values per share
 
$
30.17

 
$
17.31

Stock-based compensation expense
Stock-based Compensation Expense

Quarter Ended
 
December 4,
2014
 
November 28,
2013
Stock-based compensation expense by caption:
 
 
 
 
Cost of goods sold
 
$
12

 
$
7

Selling, general and administrative
 
15

 
11

Research and development
 
8

 
4

 
 
$
35

 
$
22

 
 
 
 
 
Stock-based compensation expense by type of award:
 
 
 
 
Stock options
 
$
18

 
$
14

Restricted stock awards
 
17

 
8

 
 
$
35

 
$
22