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Financial Instruments (Tables)
9 Months Ended
Sep. 30, 2014
Fair Value Disclosures [Abstract]  
Investments from Continuing Operations

Investments from our continuing operations consist of the following as of September 30, 2014 and December 31, 2013 (dollars in thousands):

 

     September 30, 2014  
            Gross Unrealized        
     Cost          Gain              (Loss)         Fair Value  

Short-term investments (available for sale):

          

Municipal bonds

   $ 6,874       $ 1       $ (46   $ 6,829   

Non-governmental debt securities

     88,948         8         (187     88,769   

Treasury and federal agencies

     15,157         4         (25     15,136   
  

 

 

    

 

 

    

 

 

   

 

 

 

Total short-term investments

     110,979         13         (258     110,734   
  

 

 

    

 

 

    

 

 

   

 

 

 

Long-term investments (available for sale):

          

Municipal bond

     7,850         —           (476     7,374   
  

 

 

    

 

 

    

 

 

   

 

 

 

Total investments

   $ 118,829       $ 13       $ (734   $ 118,108   
  

 

 

    

 

 

    

 

 

   

 

 

 

 

     December 31, 2013  
            Gross Unrealized        
     Cost          Gain              (Loss)         Fair Value  

Short-term investments (available for sale):

          

U.S. Treasury bills

   $ 31,591       $ 1       $ —        $ 31,592   

Long-term investments (available for sale):

          

Municipal bond

     7,850         —           (476     7,374   
  

 

 

    

 

 

    

 

 

   

 

 

 

Total investments

   $ 39,441       $ 1       $ (476   $ 38,966   
  

 

 

    

 

 

    

 

 

   

 

 

Investments Measured at Fair Value on Recurring Basis

Investments measured at fair value on a recurring basis subject to the disclosure requirements of FASB ASC Topic 820—Fair Value Measurements at September 30, 2014 and December 31, 2013 were as follows (dollars in thousands):

 

     As of September 30, 2014  
     Level 1      Level 2      Level 3      Total  

Municipal bonds

   $ —         $ 6,829       $ 7,374       $ 14,203   

Non-governmental debt securities

     —           88,769         —           88,769   

Treasury and federal agencies

     —           15,136         —           15,136   
  

 

 

    

 

 

    

 

 

    

 

 

 

Totals

   $ —         $ 110,734       $ 7,374       $ 118,108   
  

 

 

    

 

 

    

 

 

    

 

 

 

 

     As of December 31, 2013  
     Level 1      Level 2      Level 3      Total  

U.S. Treasury bills

   $ 31,592       $ —         $ —         $ 31,592   

Municipal bond

     —           —           7,374         7,374   
  

 

 

    

 

 

    

 

 

    

 

 

 

Totals

   $ 31,592       $ —         $ 7,374       $ 38,966   
  

 

 

    

 

 

    

 

 

    

 

 

Assets Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Level 3)

The following table presents a rollforward of our assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) as defined in FASB ASC Topic 820 for the year to date ended September 30, 2014 (dollars in thousands):

 

Balance at December 31, 2013

   $  7,374   

Unrealized gain (loss)

     —     
  

 

 

 

Balance at September 30, 2014

   $ 7,374