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INVESTMENTS (Tables)
 9 Months Ended
Apr. 30, 2014
INVESTMENTS  
Schedule of investments

Our investments consist of the following (in thousands):

 
   April 30, 2014   April 30, 2013  
 
   Cost   Fair Value   Cost   Fair Value  

U.S. Treasury securities

   $ 9,257   $ 9,941   $ 18,145   $ 19,572  

U.S. government agency securities

     1,975     2,044     2,632     2,800  

Corporate bonds and notes

     6,722     6,841     773     866  

Corporate equity securities

     1,701     2,486     3,501     4,700  
                   
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   $ 19,655   $ 21,312   $ 25,051   $ 27,938  
                   
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Schedule of debt securities outstanding by maturity date

 Debt securities outstanding as of April 30, 2014 mature as follows (in thousands):

 
   Cost   Fair Value  

Less than one year

   $ 6,155   $ 6,191  

Year two through year five

     5,193     5,482  

Year six through year ten

     6,448     6,959  

After ten years

     158     194  
           
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   $ 17,954   $ 18,826  
           
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