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Stock-Based Compensation (Tables)
12 Months Ended
Dec. 31, 2012
Stock-Based Compensation [Abstract]  
Schedule of stock-based compensation expense for employees and directors and non-employees
 
 
                         
 
 
Year Ended December 31,
Stock-based Compensation
 
2012
 
2011
 
2010
(In thousands)
 
 
 
 
 
 
Employees and directors
 
$
650
 
 
$
337
 
 
$
662
 
Non-employees
 
287
 
 
50
 
 
 
Total
 
$
937
 
 
$
387
 
 
$
662
 

 

Schedule of common stock activity available under share-based compensation plans
Title of Plan
 
Total Shares of Common Stock Authorized
 
Total Shares of Common Stock Issued
 
Total Shares of Common Stock
Subject to
Outstanding Awards
 
Total Shares of Common Stock Available for Grant
2005 Equity Incentive Plan(1)
 
5,200,000
 
 
610,579
 
 
 
 
4,589,421
 
2002 Outside Directors Stock Option Plan(2)
 
157,000
 
 
140,750
 
 
16,250
 
 
 
1999 Non-statutory Stock Option Plan(2)
 
5,072,683
 
 
4,966,183
 
 
106,500
 
 
 
1999 Stock Option Plan(2)
 
3,726,719
 
 
3,653,150
 
 
73,569
 
 
 
_________________________
   
(1)
As of December 31, 2012, there were 120,436 shares of unvested restricted stock awards outstanding.
   
(2)
Plan terminated in 2009, subject to options outstanding under the plan.
 
Summary of stock option activity
 
 
 
                                           
 
 
2012
 
 
 
2011
 
 
 
2010
 
 
 
 
Number of shares
(in thousands)
 
Weighted-Average Exercise Price
 
Number of shares
(in thousands)
 
Weighted-Average Exercise Price
 
Number of shares
(in thousands)
 
Weighted-Average Exercise Price
Outstanding at beginning of year
 
231
 
 
$
16.62
 
 
274
 
 
$
17.25
 
 
1,564
 
 
$
19.82
 
Expired
 
(35
)
 
$
18.83
 
 
(43
)
 
$
20.67
 
 
(1,290
)
 
$
20.36
 
Outstanding at end of year
 
196
 
 
$
16.22
 
 
231
 
 
$
16.62
 
 
274
 
 
$
17.25
 
Exercisable at end of year
 
196
 
 
$
16.22
 
 
231
 
 
$
16.62
 
 
274
 
 
$
17.25
 

 

Summary of restricted stock activity
 
 
 
                                         
 
2012
 
 
 
2011
 
 
 
2010
 
 
 
Number of shares
(in thousands)
 
Weighted-average grant-date fair value per share
 
Number of shares
(in thousands)
 
Weighted-average grant-date fair value per share
 
Number of shares
(in thousands)
 
Weighted- average grant-date fair value per share
Nonvested at beginning of year
137
 
 
$
6.09
 
 
40
 
 
$
5.05
 
 
148
 
 
$
6.54
 
Awards granted
139
 
 
$
6.49
 
 
155
 
 
$
6.15
 
 
40
 
 
$
5.05
 
Awards vested
(137
)
 
$
6.09
 
 
(40
)
 
$
5.05
 
 
(148
)
 
$
6.54
 
Forfeited
(19
)
 
$
6.35
 
 
(18
)
 
$
6.59
 
 
 
 
 
Nonvested at end of year
120
 
 
$
6.51
 
 
137
 
 
$
6.09
 
 
40
 
 
$
5.05