XML 32 R8.htm IDEA: XBRL DOCUMENT v2.4.0.6
Financial Instruments
 6 Months Ended
Jun. 30, 2012
Financial Instruments [Abstract]  
Financial Instruments

Note 2. Financial Instruments

The following table summarizes the fair value of our cash, cash equivalents and available-for-sale marketable securities held in our current investment portfolio:

 

                                 
    Amortized
Cost		     Gross
Unrealized
Gains		     Gross
Unrealized
(Losses)		     Fair Value  

June 30, 2012

                                

Cash

   $ 192,843     $ —       $ —       $ 192,843  

Cash equivalents

     7,010,586       —         —         7,010,586  

Marketable debt securities, current

     1,699,885       —         (71 )      1,699,814  
   

 

 

    

 

 

    

 

 

    

 

 

  

Total cash, cash equivalents, and marketable securities

   $ 8,903,314     $ —       $ (71 )    $ 8,903,243  
   

 

 

    

 

 

    

 

 

    

 

 

  

December 31, 2011

                                

Cash

   $ 291,093     $ —       $ —       $ 291,093  

Cash equivalents

     13,020,168       —         —         13,020,168  

Marketable debt securities, current

     3,283,209       —         (2,618 )      3,280,591  
   

 

 

    

 

 

    

 

 

    

 

 

  

Total cash, cash equivalents, and marketable securities

   $ 16,594,470     $ —       $ (2,618 )    $ 16,591,852  
   

 

 

    

 

 

    

 

 

    

 

 

  

Gross unrealized gains and losses on cash equivalents were not significant at June 30, 2012 and December 31, 2011. At June 30, 2012, our investment in money market accounts are composed primarily of U.S. Treasury debt securities, which are classified as cash equivalents in our Consolidated Balance Sheet due to their short maturities. Our investment in short-term marketable debt securities are composed primarily of commercial paper and corporate debt securities.