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Property, Plant and Equipment, Net
3 Months Ended
Jul. 31, 2011
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment [Text Block]
(4)           Property, Plant and Equipment, Net

Property, plant and equipment, net consist of the following (in thousands):
 
   
July 31,
 
April 30,
   
2011
 
2011
Land, buildings and improvements
  $ 29,617     $ 29,344  
Furniture and equipment
    22,598       22,593  
      52,215       51,937  
Less accumulated depreciation
    (24,522 )     (23,787 )
    $ 27,693     $ 28,150