Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Financial Statement Detail (Details)

v2.4.0.8
Condensed Consolidated Financial Statement Detail (Details)
3 Months Ended 6 Months Ended 1 Months Ended 6 Months Ended 1 Months Ended 6 Months Ended 1 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended
Jun. 30, 2014
USD ($)
Jun. 30, 2013
USD ($)
Jun. 30, 2014
USD ($)
Jun. 30, 2013
USD ($)
Dec. 31, 2013
USD ($)
Feb. 28, 2010
Five year warrants issued in February 2010 [Member]
USD ($)
Jun. 30, 2014
Five year warrants issued in February 2010 [Member]
USD ($)
Dec. 31, 2013
Five year warrants issued in February 2010 [Member]
USD ($)
Feb. 28, 2010
Five year warrants issued in February 2010 [Member]
Mar. 31, 2012
Five year warrants issued in March 2012 [Member]
USD ($)
Jun. 30, 2014
Five year warrants issued in March 2012 [Member]
USD ($)
Jun. 30, 2014
Five year warrants issued in March 2012 [Member]
Dec. 31, 2013
Five year warrants issued in March 2012 [Member]
USD ($)
Mar. 31, 2012
Five year warrants issued in March 2012 [Member]
Jun. 30, 2009
Warrants issued to private investors [Member]
USD ($)
Jun. 30, 2014
Warrants issued to private investors [Member]
USD ($)
Jun. 30, 2009
Warrants issued to private investors [Member]
Jun. 30, 2014
Options Contract [Member]
USD ($)
Contract
Jun. 30, 2013
Options Contract [Member]
USD ($)
Jun. 30, 2014
Options Contract [Member]
USD ($)
Contract
Jun. 30, 2013
Options Contract [Member]
USD ($)
Jun. 30, 2014
Options Contract [Member]
EUR (€)
Jun. 30, 2014
Option Contract 1 [Member]
EUR (€)
Jun. 30, 2014
Option Contract 2 [Member]
EUR (€)
Jun. 30, 2014
Demand Deposits [Member]
USD ($)
Dec. 31, 2013
Demand Deposits [Member]
USD ($)
Jun. 30, 2014
Money Market Funds [Member]
USD ($)
Dec. 31, 2013
Money Market Funds [Member]
USD ($)
Jun. 30, 2014
Common stock options and restricted stock units [Member]
Jun. 30, 2013
Common stock options and restricted stock units [Member]
Jun. 30, 2014
Common stock options and restricted stock units [Member]
Jun. 30, 2013
Common stock options and restricted stock units [Member]
Jun. 30, 2014
Warrants for common stock [Member]
Jun. 30, 2013
Warrants for common stock [Member]
Jun. 30, 2014
Warrants for common stock [Member]
Jun. 30, 2013
Warrants for common stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]                                                                        
Antidilutive securities excluded from computation of earnings per share (in shares) 9,849,000 23,522,000 8,486,000 23,260,000                                                 7,939,000 7,346,000 6,576,000 7,084,000 1,910,000 16,176,000 1,910,000 16,176,000
Numerator [Abstract]                                                                        
Net loss, Basic $ (11,897,000) $ (17,248,000) $ (16,584,000) $ (42,135,000)                                                                
Adjustment for revaluation of contingent warrant liabilities (7,616,000)   (27,150,000)                                                                  
Net loss, Diluted (19,513,000)   (43,734,000)                                                                  
Denominator Abstract]                                                                        
Weighted average shares outstanding used for basic net loss per share (in shares) 106,927,000 82,939,000 106,545,000 82,768,000                                                                
Effect of dilutive warrants (in shares) 7,199,000   8,503,000                                                                  
Weighted average shares outstanding and dilutive securities used for diluted net income per share (in shares) 114,126,000 82,939,000 115,048,000 82,768,000                                                                
Cash and Cash Equivalents [Line Items]                                                                        
Cash equivalents                                                 16,300,000 18,900,000 49,600,000 82,800,000                
Short-term Investments [Abstract]                                                                        
Short-term investments, U.S. treasury securities 9,998,000   9,998,000   19,990,000 [1]                                                              
Derivative [Line Items]                                                                        
Notional amount of derivative liability                                           15,000,000                            
Number of foreign exchange option contracts                                   2   2                                
Derivative, amount of hedged item                                             1,500,000 15,000,000                        
Derivative, premiums                                       1,500,000                                
Derivative fair value                                   100,000   100,000                                
Derivative, loss                                   100,000 2,000 200,000 200,000                              
Accrued liabilities [Abstract]                                                                        
Accrued payroll and other benefits 2,698,000   2,698,000   3,009,000                                                              
Accrued management incentive compensation 2,123,000   2,123,000   4,386,000                                                              
Other 1,568,000   1,568,000   2,539,000                                                              
Total 6,389,000   6,389,000   9,934,000 [1]                                                              
Class of Warrant or Right [Line Items]                                                                        
Warrants outstanding (in shares)                 1,260,000     12,109,418   14,834,577     347,826                                      
Exercise price (in dollars per share)           $ 10.50       $ 1.76         $ 19.50                                          
Fair value of warrant liability               1,200,000     39,000,000   68,700,000     400,000                                        
Gain (loss) on revaluation of warrant liability             800,000       27,200,000                                                  
Warrant Term           5 years       5 years         5 years                                          
Reclassification of warrant liability to equity     $ 2,500,000                                                                  
[1] The condensed consolidated balance sheet as of December 31, 2013 has been derived from the audited consolidated financial statements as of that date included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2013.