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FAIR VALUE MEASUREMENTS (Tables)
6 Months Ended
Sep. 30, 2012
FAIR VALUE MEASUREMENTS [Abstract]  
Fair Value, Assets Measured on Recurring Basis
The following table summarizes financial assets, measured at fair value on a recurring basis, by level within the fair value hierarchy as of September 30, 2012 and March 31, 2012 (in thousands):

   
As of September 30, 2012
 
  
Quoted Prices in
Active Markets for
Identical Assets
  
Significant Other
Observable Inputs
  
Significant Unobservable Inputs
    
   
Level 1
  
Level 2
  
Level 3
  
Total
 
Assets
            
Cash equivalents
 $6,241  $-  $-  $6,241 
Available-for-sale investments:
                
Certificates of deposits
  -   1,001   -   1,001 
Corporate bonds
  -   6,111   -   6,111 
Municipal bonds
  -   947   -   947 
Total assets at fair value
 $6,241  $8,059  $-  $14,300 

 
   
As of March 31, 2012
 
  
Quoted Prices in
Active Markets for
Identical Assets
  
Significant Other
Observable Inputs
  
Significant Unobservable Inputs
    
   
Level 1
  
Level 2
  
Level 3
  
Total
 
Assets
            
Cash equivalents
 $6,996  $-  $-  $6,996 
Available-for-sale investments:
                
Certificates of deposits
  -   1,247   -   1,247 
Corporate bonds
  -   6,085   -   6,085 
Municipal bonds
  -   962   -   962 
Total assets at fair value
 $6,996  $8,294  $-  $15,290