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Long-Term Liabilities (Tables)
 6 Months Ended
Nov. 30, 2014
Debt Disclosure [Abstract]  
Summary of Long-Term Liabilities Consisting of Other Deferred Liabilities, Life Insurance Loans and Liabilities of Discontinued Operations

Long-term liabilities, consisting of other deferred liabilities and life insurance loans include the following:

 

     November 30, 2014      May 31, 2014  
     (Dollars in thousands)  

Other deferred liabilities:

      

Deferred compensation expense

    $ 5,249       $ 5,386   

Accrued warranty and related expenses

      2,000         2,000   
  

 

 

     

 

 

  

Total other deferred liabilities

      7,249         7,386   

Life insurance loans

      6,334         6,334   
  

 

 

     

 

 

  
   $ 13,583       $ 13,720