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Defined Benefit Pension Plans (Tables)
9 Months Ended
Jan. 31, 2015
Compensation and Retirement Disclosure [Abstract]  
Pension Expenses

Pension expense consisted of the following (in thousands):

 

     Three months ended
January 31, 2015
     Three months ended
January 31, 2014
 

Service cost

   $ -0-       $ -0-   

Interest cost

     223         214   

Expected return on plan assets

     (331      (321

Recognition of net loss

     233         286   
  

 

 

    

 

 

 

Net periodic pension expense

$ 125    $ 179   
  

 

 

    

 

 

 
     Nine months ended
January 31, 2015
     Nine months ended
January 31, 2014
 

Service cost

   $ -0-       $ -0-   

Interest cost

     670         643   

Expected return on plan assets

     (993      (962

Recognition of net loss

     700         857   
  

 

 

    

 

 

 

Net periodic pension expense

$ 377    $ 538