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FAIR VALUE MEASUREMENTS
9 Months Ended
Apr. 30, 2011
Fair Value Measurements [Abstract]  
FAIR VALUE MEASUREMENTS
NOTE 12 - FAIR VALUE MEASUREMENTS
 
     The Company records certain of its financial assets and liabilities at fair value, which is the price that would be received to sell an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants at the measurement date.
 
     The current authoritative guidance discusses valuation techniques, such as the market approach (comparable market prices), the income approach (present value of future income or cash flow), and the cost approach (cost to replace the service capacity of an asset or replacement cost). Authoritative guidance utilizes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value into three broad levels. The following is a brief description of those three levels:
  • Level 1: Use of observable inputs such as quoted prices (unadjusted) in active markets for identical assets or liabilities.
     
  • Level 2: Use of inputs other than quoted prices included in Level 1, which are observable for the asset or liability, either directly or indirectly. These include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, or other inputs that are observable or can be corroborated by observable market data.
     
  • Level 3: Use of inputs that are unobservable.

     The following table presents, for each of these hierarchy levels, the Company’s financial assets and liabilities that are measured at fair value as of April 30, 2011:
 
            Fair Value Measurements
  As of                          
  Apr. 30, 2011   Level 1   Level 2   Level 3
Financial assets carried at fair value                      
     Money market funds $       16,964   $       16,964   $         $      
     Available-for-sale securities:                      
         Equity securities   8,715     8,715        
         Debt securities:                      
             Corporate   37,661       37,661    
             U.S. Treasury   10,820         10,820    
             Other U.S. government   27,579       27,579    
             Municipal government   997         997    
             CMO/mortgage- backed   203         203    
     Derivative financial instruments:                      
         Foreign exchange forward contracts   1,646         1,646    
                        
Financial liabilities carried at fair value                      
     Derivative financial instruments:                      
         Foreign exchange forward contracts   1,952         1,952    

     The following table presents, for each of these hierarchy levels, the Company’s financial assets and liabilities that are measured at fair value as of July 31, 2010:
 
            Fair Value Measurements
  As of                  
  Jul. 31, 2010   Level 1       Level 2       Level 3
Financial assets carried at fair value                      
     Money market funds $       5,034   $       5,034   $         $      
     Available-for-sale securities:                      
         Equity securities   5,224     5,224        
         Debt securities:                      
             Corporate   27,676         27,676    
             U.S. Treasury   19,209         19,209    
             Other U.S. government   20,163         20,163    
             Municipal government   1,001         1,001    
             CMO/mortgage- backed   256         256    
     Derivative financial instruments:                      
         Foreign exchange forward contracts   2,166         2,166    
                          
Financial liabilities carried at fair value                      
     Derivative financial instruments:                      
         Foreign exchange forward contracts   555         555    

     The Company’s money market funds and equity securities are valued using quoted market prices and, as such, are classified within Level 1 of the fair value hierarchy.
 
     The fair value of the Company’s investments in debt securities are valued utilizing third party pricing services. The pricing services use inputs to determine fair value which are derived from observable market sources including reportable trades, benchmark curves, credit spreads, broker/dealer quotes, bids, offers, and other industry and economic events. These investments are included in Level 2 of the fair value hierarchy.
 
     The fair values of the Company’s foreign currency forward contracts are valued using pricing models, with all significant inputs derived from or corroborated by observable market data such as yield curves, currency spot and forward rates and currency volatilities. These investments are included in Level 2 of the fair value hierarchy.
 
     The Company completed its annual goodwill impairment test for all reporting units in the third quarter of fiscal year 2011 and determined that no impairment existed. In addition, the Company had no impairment of goodwill in the prior year. In connection with the annual goodwill impairment test, the Company estimates the fair value of its reporting units using a market approach employing Level 3 inputs as defined in the fair value hierarchy.