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Investments (Tables)
3 Months Ended
Dec. 31, 2013
Text Block [Abstract]  
Summary of Investments by Type of Security

The following table summarizes investments by type of security as of December 31, 2013:

 

     Cost      Gross
Unrealized
Gains
     Gross
Unrealized
Losses
    Fair Market
Value
 

Available-for-sale securities:

          

Corporate debt securities, short-term

   $ 13,178,878       $ 3,742       $ (1,744   $ 13,180,876   

Corporate debt securities, long-term

     4,053,426        845         (1,845     4,052,426   
  

 

 

    

 

 

    

 

 

   

 

 

 

Total

   $ 17,232,304       $ 4,587       $ (3,589   $ 17,233,302   
  

 

 

    

 

 

    

 

 

   

 

 

 

The following table summarizes investments by type of security as of September 30, 2013:

 

     Cost      Gross
Unrealized
Gains
     Gross
Unrealized
Losses
    Fair Market
Value
 

Available-for-sale securities:

          

Corporate debt securities, short-term

   $ 5,729,034       $ 2,378       $ (540   $ 5,730,872   

Corporate debt securities, long-term

     —          —          —         —    
  

 

 

    

 

 

    

 

 

   

 

 

 

Total

   $ 5,729,034       $ 2,378       $ (540   $ 5,730,872   
  

 

 

    

 

 

    

 

 

   

 

 

 
Summary of Fair Value of Investments Measured on Recurring Basis

Based on the fair value hierarchy, all of the Company’s investments are classified as Level 2, as represented in the following table:

 

     December 31, 2013      September 30, 2013  

Short-term investments:

     

Corporate debt securities

     

Financial

   $ 8,240,029       $ 3,411,661   

Industrial

     1,443,139         1,517,327   

Utility

     1,100,053         401,984   

Commercial paper

     

Financial

     1,597,612         —    

Industrial

     —          399,900   

Certificate of deposit—financial

     800,043         —    
  

 

 

    

 

 

 

Total short-term investments

   $ 13,180,876       $ 5,730,872   
  

 

 

    

 

 

 

Long-term investments:

     

Corporate debt securities

     

Financial

   $ 2,506,230       $ —    

Industrial

     1,182,490         —    

Utility

     363,706         —    
  

 

 

    

 

 

 

Total long-term investments

   $ 4,052,426       $ —