XML 29 R6.htm IDEA: XBRL DOCUMENT v3.8.0.1
Consolidated Statements of Stockholders' Equity - USD ($)
shares in Thousands, $ in Thousands
Total
Common Stock
Preferred Stock
Additional Paid-in Capital
Accumulated Other Comprehensive Loss
Accumulated Deficit
Beginning Balances at Dec. 31, 2014 $ 100,482 $ 26   $ 695,058 $ (1,669) $ (592,933)
Beginning Balances (in shares) at Dec. 31, 2014   26,307 43      
Conversion of Preferred Stock 2 $ 5   (3)    
Conversion of Preferred Stock (in shares)   4,343 (43)      
Issuance (withholding) of common stock upon exercise of stock options and restricted stock awards, net 531     531    
Issuance (withholding) of common stock upon exercise of stock options and restricted stock awards, net (in shares)   37        
Issuance of common stock under Employee Stock Purchase Plan 291     291    
Issuance of common stock under Employee Stock Purchase Plan (in shares)   23        
Issuance of common stock, net of issuance costs 183,897 $ 7   183,890    
Issuance of common stock, net of issuance costs (in shares)   7,353        
Warrants exercised 228     228    
Warrants exercised (in shares)   383        
Stock compensation expense 9,703     9,703    
Total other comprehensive loss (1,261)       (1,261)  
Net loss (106,794)         (106,794)
Ending Balances at Dec. 31, 2015 187,079 $ 38   889,698 (2,930) (699,727)
Ending Balances (in shares) at Dec. 31, 2015   38,446        
Issuance (withholding) of common stock upon exercise of stock options and restricted stock awards, net (83) $ 1   (84)    
Issuance (withholding) of common stock upon exercise of stock options and restricted stock awards, net (in shares)   107        
Issuance of common stock under Employee Stock Purchase Plan 615     615    
Issuance of common stock under Employee Stock Purchase Plan (in shares)   46        
Stock compensation expense 14,728     14,728    
Total other comprehensive loss (694)       (694)  
Net loss (112,444)         (112,444)
Ending Balances at Dec. 31, 2016 89,201 $ 39   904,957 (3,624) (812,171)
Ending Balances (in shares) at Dec. 31, 2016   38,599        
Issuance (withholding) of common stock upon exercise of stock options and restricted stock awards, net 1,613     1,613    
Issuance (withholding) of common stock upon exercise of stock options and restricted stock awards, net (in shares)   262        
Issuance of common stock under Employee Stock Purchase Plan 293     293    
Issuance of common stock under Employee Stock Purchase Plan (in shares)   84        
Issuance of common stock, net of issuance costs 185,936 $ 23   185,913    
Issuance of common stock, net of issuance costs (in shares)   22,588        
Stock compensation expense 14,917     14,917    
Total other comprehensive loss 2,743       2,743  
Net loss (95,154)         (95,154)
Ending Balances at Dec. 31, 2017 $ 199,549 $ 62   $ 1,107,693 $ (881) $ (907,325)
Ending Balances (in shares) at Dec. 31, 2017   61,533