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Financial Instruments (Tables)
 12 Months Ended
Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract]  
Cash and Cash Equivalents

The following table summarizes the fair value of our cash and cash equivalents:

 

     Amortized
Cost		      Gross
Unrealized
Gains		      Gross
Unrealized
Losses		      Fair Value  

December 31, 2014

            

Cash

    $ 1,398,928       $ —        $ —         $ 1,398,928   

Cash equivalents (money market accounts)

      23,588,675         —          —           23,588,675   
  

 

 

     

 

 

     

 

 

     

 

 

  

Total cash, cash equivalents, and marketable securities

 $ 24,987,603    $ —     $ —      $ 24,987,603   
  

 

 

     

 

 

     

 

 

     

 

 

  

December 31, 2013

Cash

 $ 1,355,281    $ —     $ —      $ 1,355,281   

Cash equivalents (money market accounts)

   29,230,143      —       —        29,230,143   
  

 

 

     

 

 

     

 

 

     

 

 

  

Total cash, cash equivalents, and marketable securities

 $ 30,585,424    $ —     $ —      $ 30,585,424