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CASH AND EQUIVALENTS AND MARKETABLE SECURITIES (Tables)
 6 Months Ended
Jun. 30, 2012
Cash Cash Equivalents and Marketable Securities Table

Investments in available-for-sale marketable debt securities are as follows at June 30, 2012 and December 31, 2011:

 

    Amortized Cost     Unrealized Gains     Unrealized Losses     Fair Value  
    2012     2011     2012     2011     2012     2011     2012     2011  

U.S. government and agency backed securities

   $ 36,121,573      $ 31,480,482      $ 561,093      $ 665,171      $ —        $ —        $ 36,682,666      $ 32,145,653   

Corporate debt and certificates of deposit

     29,024,865        30,879,717        —          —          (540,658 )      (701,983 )      28,484,207        30,177,734   
 

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

  

Total

   $ 65,146,438      $ 62,360,199      $ 561,093      $ 665,171      $ (540,658 )    $ (701,983 )    $ 65,166,873      $ 62,323,387   
 

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

  
Marketable Debt Securities

The contractual maturity of the Company’s marketable debt securities is as follows at June 30, 2012:

 

    Less than
One year		     One to
Five years		     Greater than
Five years		     Total  

U.S. government and agency backed securities

   $ 6,058,860      $ 27,968,230      $ 2,655,576      $ 36,682,666   

Corporate debt and certificates of deposit

     19,293,984        8,358,973        831,250        28,484,207   
 

 

 

    

 

 

    

 

 

    

 

 

  

Total

   $ 25,352,844      $ 36,327,203      $ 3,486,826      $ 65,166,873