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EMPLOYEE STOCK PLANS (Tables)
 12 Months Ended
Dec. 31, 2013
Employee Service Share-based Compensation, Aggregate Disclosures [Abstract]  
Schedule of Stock Option Activity
The following table summarizes the stock option activity under all of our equity incentive plans for the year ended December 31, 2013:
 
Number of Shares
 
Weighted-
Average
Exercise
Price
 
Weighted Average Remaining Contractual Life
 
Aggregate Intrinsic Value
 
(thousands)
 
 
 
(years)
 
(thousands)
Outstanding at December 31, 2012
7,614

 
$
3.34

 
 
 


Granted
1,579

 
$
1.40

 
 
 


Exercised
(405
)
 
$
1.10

 
 
 


Forfeited or expired
(3,795
)
 
$
4.29

 
 
 
 
Outstanding at December 31, 2013
4,993

 
$
2.18

 
4.9
 
$
5,281

Vested and expected to vest at December 31, 2013
4,626

 
$
2.23

 
4.8
 
$
4,851

Exercisable at December 31, 2013
1,778

 
$
3.63

 
3.1
 
$
884

 
 
 
 
 
 
 
 
Schedule of Share-based Compensation, Stock Options Supplemental Information
The following table provides supplemental information pertaining to our stock options for the years ended December 31, 2013, 2012 and 2011 (in thousands, except weighted-average fair values):
 
Years Ended December 31,
 
2013
 
2012
 
2011
Weighted-average fair value of options granted
$
0.87

 
$
0.95

 
$
1.36

Intrinsic value of options exercised
$
386

 
$
211

 
$
122

Cash received from options exercised
$
445

 
$
238

 
$
109
Schedule of Restricted Stock Units
The following table summarizes RSU activity under all of our equity incentive plans for the year ended December 31, 2013:
 
Number of Shares
 
Weighted Average Grant Date Fair Value
 
(thousands)
 
 
Outstanding at December 31, 2012
32

 
$
1.28

Granted
416

 
1.46

Released
(8
)
 
$
1.16

Forfeited or Expired
(11
)
 
$
1.60

Outstanding at December 31, 2013
429

 
$
1.45