Annual report pursuant to Section 13 and 15(d)

CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY

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CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (USD $)
In Thousands, except Share data, unless otherwise specified
Preferred Stock [Member]
Common Stock [Member]
Paid-In Capital [Member]
Accumulated Comprehensive Income [Member]
Accumulated Deficit [Member]
Total
Balance at Dec. 31, 2010 $ 1 $ 214 $ 876,686 $ 0 $ (853,310) $ 23,591
Balance (in shares) at Dec. 31, 2010 3,000 28,491,000        
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Exercise of stock options, contributions to 401(k) and incentive plans 0 2 1,099 0 0 1,101
Exercise of stock options, contributions to 401(k) and incentive plans (in shares)   253,000        
Stock-based compensation expense 0 0 7,759 0 0 7,759
Sale of shares of common stock 0 45 15,043 0 0 15,088
Sale of shares of common stock (in shares)   6,108,000        
Issuance of warrants 0 0 215 0 0 215
Conversion of Series B convertible preferred stock (1) 2 (1) 0 0 0
Conversion of Series B convertible preferred stock (in shares) (3,000) 255,000        
Comprehensive loss:            
Net loss 0 0 0 0 (32,743) (32,743)
Balance at Dec. 31, 2011 0 263 900,801 0 (886,053) 15,011
Balance (in shares) at Dec. 31, 2011 0 35,107,000        
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Exercise of stock options, contributions to 401(k) and incentive plans 0 8 1,323 0 0 1,331
Exercise of stock options, contributions to 401(k) and incentive plans (in shares)   1,089,000        
Release of restricted stock units 0 0 0 0 0 0
Release of restricted stock units (in shares)   397,000        
Stock-based compensation expense 0 0 4,284 0 0 4,284
Sale of shares of common stock 0 340 75,960 0 0 76,300
Sale of shares of common stock (in shares)   45,288,000        
Issuance of warrants   0 (6,335) 0 0 (6,335)
Exercise of warrants   4 1,929 0 0 1,933
Exercise of warrants (in shares)   566,000        
Comprehensive loss:            
Net loss   0 0 0 (71,065) (71,065)
Comprehensive loss   0 0 8 0 8
Balance at Dec. 31, 2012 0 615 977,962 8 (957,118) 21,467
Balance (in shares) at Dec. 31, 2012 0 82,447,000        
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Exercise of stock options, contributions to 401(k) and incentive plans 0 7 2,213 0 0 2,220
Exercise of stock options, contributions to 401(k) and incentive plans (in shares)   933,000        
Release of restricted stock units 0 6 (6) 0 0 0
Release of restricted stock units (in shares)   801,000        
Stock-based compensation expense 0 0 5,099 0 0 5,099
Sale of shares of common stock 0 147 82,799 0 0 82,946
Sale of shares of common stock (in shares)   19,661,000        
Exercise of warrants 0 12 8,336 0 0 8,348
Exercise of warrants (in shares)   1,544,000        
Comprehensive loss:            
Net loss 0 0 0 0 (124,058) (124,058)
Comprehensive loss 0 0 0 (9) 0 (9)
Balance at Dec. 31, 2013 $ 0 $ 787 $ 1,076,403 $ (1) $ (1,081,176) $ (3,987)
Balance (in shares) at Dec. 31, 2013 0 105,386,000