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Fair Value Measurements (Tables)
 9 Months Ended
Sep. 30, 2013
Cash Equivalents and Marketable Securities at Fair Value

The fair value hierarchy of the Company’s cash equivalents and marketable securities at fair value is as follows:

 

          Fair Value Measurements at Reporting Date Using  
(in thousands)     September 30,  
2013		     Quoted Prices
in Active
Markets for
Identical Assets
(Level 1)		     Significant
Other
Observable
Inputs
(Level 2)		  

Money market funds

   $ 3,070      $ 3,070      $ —   
 

 

 

    

 

 

    

 

 

  

Marketable securities:

      

Municipal bonds

   $ 47,357      $ 13,289      $ 34,068   

Corporate bonds

     29,823        29,823        —   

Certificates of deposit

     2,438        —        2,438   
 

 

 

    

 

 

    

 

 

  

Total marketable securities

   $ 79,618      $ 43,112      $ 36,506   
 

 

 

    

 

 

    

 

 

  
          Fair Value Measurements at Reporting Date Using  
(in thousands)     December 31,  
2012		     Quoted Prices
in Active
Markets for
Identical Assets
(Level 1)		     Significant
Other
Observable
Inputs
(Level 2)		  

Money market funds

   $ 2,873      $ 2,873      $ —   
 

 

 

    

 

 

    

 

 

  

Marketable securities:

      

Municipal bonds

   $ 30,526      $ 11,966      $ 18,560   

Corporate bonds

     14,934        14,934        —   
 

 

 

    

 

 

    

 

 

  

Total marketable securities

   $ 45,460      $ 26,900      $ 18,560