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Warranty
 12 Months Ended
May 31, 2012
Warranty and Commitments and Contingencies [Abstract]  
Warranty
NOTE 6   Warranty

A reconciliation of accrued warranty and related expenses is as follows:

 

                 
     Year Ended May 31,  
     2012     2011  
    (Dollars in thousands)  

Balance at the beginning of the period

   $ 4,966     $ 4,839  

Accruals for warranties

     5,990       5,040  

Settlements made during the period

     (5,086 )      (4,913 ) 
   

 

 

    

 

 

  

Balance at the end of the period

     5,870       4,966  

Non-current balance included in other deferred liabilities

     2,000       1,600  
   

 

 

    

 

 

  

Accrued warranty and related expenses

   $ 3,870     $ 3,366