v2.4.0.6
Consolidated Statements Of Stockholders' Equity (Deficit) (USD $)
In Thousands, except Share data, unless otherwise specified
Common Stock [Member]
February 2009 [Member]
Common Stock [Member]
January 2010 [Member]
Common Stock [Member]
November 2010 [Member]
Common Stock [Member]
May 2011 [Member]
Common Stock [Member]
Additional Paid-In Capital [Member]
February 2009 [Member]
Additional Paid-In Capital [Member]
January 2010 [Member]
Additional Paid-In Capital [Member]
November 2010 [Member]
Additional Paid-In Capital [Member]
May 2011 [Member]
Additional Paid-In Capital [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
February 2009 [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
January 2010 [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
November 2010 [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
May 2011 [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Deficit [Member]
February 2009 [Member]
Accumulated Deficit [Member]
January 2010 [Member]
Accumulated Deficit [Member]
November 2010 [Member]
Accumulated Deficit [Member]
May 2011 [Member]
Accumulated Deficit [Member]
February 2009 [Member]
January 2010 [Member]
November 2010 [Member]
May 2011 [Member]
Total
Balance at Dec. 31, 2008         $ 30         $ 218,136         $ 50         $ (237,684)         $ (19,468)
Balance, shares at Dec. 31, 2008         29,824                                        
Common stock, shares issued, value 16         45,633         0         0         45,649        
Issuance of stock in follow-on offering, shares 15,994                                                
Issuance of common stock under equity incentive plans         0         120         0         0         120
Issuance of common stock under equity incentive plans, shares         34                                        
Issuance of common stock for Employee Stock Purchase Plan         0         541         0         0         541
Issuance of common stock for Employee Stock Purchase Plan, shares         193                                        
Share-based compensation for employee stock options and award grants         0         8,300         0         0         8,300
Share-based compensation for employee stock options and award grants, shares         0                                        
Comprehensive loss:                                                  
Unrealized loss on available-for-sale investment securities         0         0         (54)         0         (54)
Foreign currency translation adjustments         0         0         (9)         0         (9)
Net loss         0         0         0         (53,524)         (53,524)
Comprehensive loss         0         0         0         0         (53,587)
Balance at Dec. 31, 2009         46         272,730         (13)         (291,208)         (18,445)
Balance, shares at Dec. 31, 2009         46,045                                        
Common stock, shares issued, value   4 3       32,988 32,987       0 0       0 0       32,992 32,990    
Issuance of stock in follow-on offering, shares   4,025 3,278                                            
Issuance of stock upon conversion of convertible debt         8         54,640         0         0         54,648
Issuance of stock upon conversion of convertible debt, shares         7,929                                        
Issuance of common stock under equity incentive plans         1         3,643         0         0         3,644
Issuance of common stock under equity incentive plans, shares         594                                        
Issuance of common stock for Employee Stock Purchase Plan         0         920         0         0         920
Issuance of common stock for Employee Stock Purchase Plan, shares         207                                        
Share-based compensation for employee stock options and award grants         0         9,467         0         0         9,467
Share-based compensation for employee stock options and award grants, shares         0                                        
Comprehensive loss:                                                  
Unrealized loss on available-for-sale investment securities         0         0         (5)         0         (5)
Foreign currency translation adjustments         0         0         (48)         0         (48)
Net loss         0         0         0         (55,170)         (55,170)
Comprehensive loss         0         0         0         0         (55,223)
Balance at Dec. 31, 2010         62         407,375         (66)         (346,378)         60,993
Balance, shares at Dec. 31, 2010         62,078                                        
Common stock, shares issued, value       5         71,165         0         0         71,170  
Issuance of stock in follow-on offering, shares       4,700                                          
Issuance of common stock under equity incentive plans         1         2,263         0         0         2,264
Issuance of common stock under equity incentive plans, shares         639                                        
Issuance of common stock for Employee Stock Purchase Plan         0         1,275         0         0         1,275
Issuance of common stock for Employee Stock Purchase Plan, shares         132                                        
Share-based compensation for employee stock options and award grants         0         13,548         0         0         13,548
Share-based compensation for employee stock options and award grants, shares         0                                       0
Comprehensive loss:                                                  
Unrealized loss on available-for-sale investment securities         0         0         9         0         9
Foreign currency translation adjustments         0         0         (23)         0         (23)
Net loss         0         0         0         (44,746)         (44,746)
Comprehensive loss         0         0         0         0         (44,760)
Balance at Dec. 31, 2011         $ 68         $ 495,626         $ (80)         $ (391,124)         $ 104,490
Balance, shares at Dec. 31, 2011         67,549