Annual report pursuant to Section 13 and 15(d)

Income Taxes (Tables)

v2.4.0.6
Income Taxes (Tables)
12 Months Ended
Dec. 31, 2012
Income Taxes [Abstract]  
Components of Deferred Tax Assets
                 
    December 31,  
    2012     2011  

Deferred tax assets:

               

Net operating loss carryforwards

  $ 81,127     $ 84,328  

Research credit carryforwards

    12,750       12,484  

Other, net

    4,190       3,883  

Deferred revenue

    5,749       —  
   

 

 

   

 

 

 

Total deferred tax assets

    103,816       100,695  

Valuation allowance

    (103,816 )      (100,695 ) 
   

 

 

   

 

 

 

Net deferred tax assets

  $ —     $ —  
   

 

 

   

 

 

 
Effective Tax Rate for Income Taxes Differs from The Federal Statutory Rate
                         
    Year Ending December 31,  
    2012     2011     2010  

Computed at 34%

  $ (5,134 )    $ (5,168 )    $ (2,265 ) 

State taxes

    (234 )      (228 )      (1,347 ) 

Book gains (losses) not currently benefited

    3,120       (1,264 )      844  

Other

    1,901       2,746       2,773  

Disallowed interest expense

    1,363       1,457       —  

Income from debt restructuring

    (1,615 )      2,462       —  

Revaluation of warrant liability

    600       —       —  
   

 

 

   

 

 

   

 

 

 

Total

  $ 1     $ 5     $ 5