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Investments
3 Months Ended
Aug. 31, 2012
Investments [Abstract]  
Investments

NOTE 2 Investments

The following is a summary of investments:

 

                         
    Gross
Amortized
Costs
    Gross
Unrealized
Gains
    Fair
Value
 
    (Dollars in thousands)  

August 31, 2012

                       

U. S. Treasury Bills

  $ 15,998     $ 3     $ 16,001  
   

 

 

   

 

 

   

 

 

 

May 31, 2012

                       

U. S. Treasury Bills

  $ 16,998     $ 5     $ 17,003  
   

 

 

   

 

 

   

 

 

 

The fair value is determined by a secondary market for U.S. Government Securities. At May 31, 2012, the U.S. Treasury Bills matured within four months. At August 31, 2012, the U.S. Treasury Bills matures within three months.