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Marketable Securities
6 Months Ended
Jan. 31, 2014
Marketable Securities [Abstract]  
Marketable Securities
Note 3—Marketable Securities
 
The following is a summary of marketable securities:
 
   
Amortized Cost
   
Gross
Unrealized
Gains
   
Gross
Unrealized
 Losses
   
Fair Value
 
   
(in thousands)
 
Available-for-sale securities:
                       
January 31, 2014:
                       
Certificates of deposit*
  $ 7,053     $     $     $ 7,053  
Municipal bonds
    4,139                   4,139  
Total
  $ 11,192     $     $     $ 11,192  
                                 
July 31, 2013:
                               
Certificates of deposit*
  $ 8,786     $     $     $ 8,786  
Municipal bonds
    898                   898  
Total
  $ 9,684     $     $     $ 9,684  
 
* Each of the Company’s certificates of deposit has a CUSIP, was purchased in the secondary market through a broker and may be sold in the secondary market.
 
Proceeds from maturities and sales of available-for-sale securities were $4.0 million and $10.1 million in the three and six months ended January 31, 2014, respectively. There were no maturities or sales of available-for-sale securities in the three and six months ended January 31, 2013. There were no realized gains or losses from sales of available-for-sale securities in the three and six months ended January 31, 2014 and 2013. The Company uses the specific identification method in computing the gross realized gains and gross realized losses on the sales of marketable securities.
 
The contractual maturities of the Company’s available-for-sale securities at January 31, 2014 were as follows:
 
   
Fair Value
 
   
(in thousands)
 
Within one year
  $ 10,943  
After one year through five years
    249  
After five years through ten years
     
After ten years
     
Total
  $ 11,192