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Defined Benefit Pension Plans (Tables)
9 Months Ended
Jan. 31, 2014
Compensation And Retirement Disclosure [Abstract]  
Pension Expenses

Pension expense consisted of the following (in thousands):

 

     Three months ended
January 31, 2014
    Three months ended
January 31, 2013
 

Service cost

   $ -0-      $ -0-   

Interest cost

     214        226   

Expected return on plan assets

     (321     (303

Recognition of net loss

     286        276   
  

 

 

   

 

 

 

Net periodic pension expense

   $ 179      $ 199   
  

 

 

   

 

 

 
     Nine months ended
January 31, 2014
    Nine months ended
January 31, 2013
 

Service cost

   $ -0-      $ -0-   

Interest cost

     643        679   

Expected return on plan assets

     (962     (910

Recognition of net loss

     857        827   
  

 

 

   

 

 

 

Net periodic pension expense

   $ 538      $ 596