Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Stockholders' Equity (Deficit)

v3.3.1.900
Consolidated Statements of Stockholders' Equity (Deficit) - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-In Capital
Accumulated Other Comprehensive Income (Loss)
Accumulated Deficit
Balances, value at Dec. 31, 2012 $ (13,853) $ 56 $ 309,343 $ 11 $ (323,263)
Balances, shares at Dec. 31, 2012   56,431,207      
Exercise of warrants to purchase common stock, value 1,882 $ 3 1,879    
Exercise of warrants to purchase common stock, shares   2,488,518      
Issuance of common stock pursuant to stock plans, value 510   510    
Issuance of common stock pursuant to stock plans, shares   312,886      
Stock-based compensation 4,922   4,922    
Reclassification of fair value of warrants exercised from liability to equity 11,462   11,462    
Change in unrealized gain (loss) on marketable securities 17     17  
Net income (loss) (28,415)       (28,415)
Balances, value at Dec. 31, 2013 (23,475) $ 59 328,116 28 (351,678)
Balances, shares at Dec. 31, 2013   59,232,611      
Exercise of warrants to purchase common stock, value 4,834 $ 3 4,831    
Exercise of warrants to purchase common stock, shares   3,437,348      
Issuance of common stock pursuant to stock plans, value 686 $ 1 685    
Issuance of common stock pursuant to stock plans, shares   228,274      
Stock-based compensation 5,488   5,488    
Reclassification of fair value of warrants exercised from liability to equity 10,116   10,116    
Change in unrealized gain (loss) on marketable securities (41)     (41)  
Net income (loss) (21,584)       (21,584)
Balances, value at Dec. 31, 2014 $ (23,976) $ 63 349,236 (13) (373,262)
Balances, shares at Dec. 31, 2014 62,898,233 62,898,233      
Issuance of common stock to certain investors, net of issuance costs of $1.9 million, value $ 13,453 $ 8 13,445    
Issuance of common stock to certain investors, net of issuance costs of $1.9 million, shares   8,300,000      
Exercise of warrants to purchase common stock, value 25   25    
Exercise of warrants to purchase common stock, shares   10,000      
Issuance of common stock pursuant to stock plans, value 712   712    
Issuance of common stock pursuant to stock plans, shares   99,759      
Stock-based compensation 6,801   6,801    
Stock-based compensation, shares   154,067      
Reclassification of fair value of warrants exercised from liability to equity 17   17    
Change in unrealized gain (loss) on marketable securities (8)     (8)  
Net income (loss) 43,822       43,822
Balances, value at Dec. 31, 2015 $ 40,846 $ 71 $ 370,236 $ (21) $ (329,440)
Balances, shares at Dec. 31, 2015 71,462,059 71,462,059