v3.3.1.900
Equity Plans (Tables)
3 Months Ended
Dec. 03, 2015
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
 
December 3,
2015
 
December 4,
2014
Stock options granted
 
2

 
1

Weighted-average grant-date fair value per share
 
$
7.99

 
$
13.20

Average expected life in years
 
5.6

 
5.7

Weighted-average expected volatility
 
46
%
 
47
%
Weighted-average risk-free interest rate
 
1.5
%
 
1.6
%

Schedule restricted stock awards activity
Restricted Stock Awards activity was as follows:

Quarter ended
 
December 3,
2015
 
December 4,
2014
Restricted stock awards granted
 
3

 
2

Weighted-average grant-date fair value per share
 
$
18.52

 
$
30.17

Stock-based compensation expense by caption and type of award
Quarter ended
 
December 3,
2015
 
December 4,
2014
Stock-based compensation expense by caption
 
 
 
 
Cost of goods sold
 
$
17

 
$
12

Selling, general, and administrative
 
18

 
15

Research and development
 
11

 
8

 
 
$
46

 
$
35

 
 
 
 
 
Stock-based compensation expense by type of award
 
 
 
 
Stock options
 
$
20

 
$
18

Restricted stock awards
 
26

 
17

 
 
$
46

 
$
35