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Property, Plant and Equipment, Net
6 Months Ended
Oct. 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):
   
October 31,
   
April 30,
 
   
2011
   
2011
 
Land, buildings and improvements
  $ 29,647     $ 29,344  
Furniture and equipment
    22,709       22,593  
      52,356       51,937  
Less accumulated depreciation
    (25,377 )     (23,787 )
    $ 26,979     $ 28,150