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Stockholders' Equity and Employee Stock Option Plans Stock Award Activity (Tables)
 12 Months Ended
Dec. 31, 2013
Stock Award Activity [Abstract]  
Schedule Of Share Based Compensation Stock Options, RSU and SARS Activity [Table Text Block]
The following table summarizes stock award activity under all plans for the years ended December 31, 2013, 2012, and 2011:

 
 
 
 
Options Outstanding 
 
 
Shares Available for Grant 

 
Number Outstanding
 
Weighted-Average Exercise Price Per Share
BALANCE AT DECEMBER 31, 2010
 
11,420,522

 
4,275,648

 
$
8.55

Options and stock appreciation rights granted
 
(313,750
)
 
313,750

 
8.26

RSUs granted
 
(1,381,070
)
 
—

 
—

Options and stock appreciation rights cancelled
 
981,365

 
(981,365
)
 
8.64

RSUs cancelled
 
480,571

 
—

 
—

Options exercised
 
—

 
(504,561
)
 
7.15

Unissued shares returned to plan
 
190,406

 
—

 
—

1998 Directors Plan shares expired
 
(10,000
)
 
—

 
—

Additional shares reserved
 
1,679,692

 
—

 
—

BALANCE AT DECEMBER 31, 2011
 
13,047,736

 
3,103,472

 
$
8.71

Options granted
 
(1,883,388
)
 
1,883,388

 
3.21

RSUs granted
 
(700,987
)
 
—

 
—

Options and stock appreciation rights cancelled
 
1,047,545

 
(1,047,545
)
 
8.73

RSUs cancelled
 
315,817

 
—

 
—

Options exercised
 
—

 
—

 
—

Unissued shares returned to plan
 
—

 
—

 
—

1998 Directors Plan shares expired
 
(60,000
)
 
—

 
—

Additional shares reserved
 
1,700,859

 
—

 
—

BALANCE AT DECEMBER 31, 2012
 
13,467,582

 
3,939,315

 
$
6.08

Options granted
 
(1,785,728
)
 
1,785,728

 
2.34

RSUs granted
 
(702,665
)
 
—

 
—

Options and stock appreciation rights cancelled
 
1,545,194

 
(1,545,194
)
 
7.22

RSUs cancelled
 
471,867

 
—

 
—

Options exercised
 
—

 
—

 
—

Unissued shares eliminated from plan
 
(15,542,434
)
 
—

 
—

1998 Directors Plan shares expired
 
75,000

 
(75,000
)
 
—

Additional shares reserved
 
7,122,039

 
—

 
—

BALANCE AT DECEMBER 31, 2013
 
4,650,855

 
4,104,849

 
$
4.13




During the years ended December 31, 2013 and 2012, no options or SARs were exercised. The total intrinsic value of options and SARS exercised in 2011 was approximately $1.2 million. The intrinsic value is calculated as the difference between the market value on the date of exercise and the exercise price of the shares.