Fair Value Measurements (Tables)
 9 Months Ended
Sep. 30, 2012
Fair Value Measurements [Abstract]  
Schedule of financial assets and liabilities measured at fair value

The following table presents our financial assets and liabilities that are carried at fair value, classified according to the three categories described above (in thousands):

 

                                 
    Fair Value Measurement at September 30, 2012  
    Total     Quoted Prices in
Active Markets for
Identical Assets
(Level 1)		     Significant Other
Observable Inputs
(Level 2)		     Significant
Unobservable
Inputs
(Level 3)		  

Assets:

                                

Cash equivalents—money market funds

   $ 1,441     $ 1,441     $ —       $ —    

Cash equivalents—commercial paper

     7,749       —         7,749       —    

Cash equivalents—corporate bonds

     4,258       —         4,258       —    

Derivatives—currency swap, current portion

     249       —         249       —    
   

 

 

    

 

 

    

 

 

    

 

 

  

Total assets

   $ 13,697     $ 1,441     $ 12,256     $ —