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Property, Plant and Equipment, Net
9 Months Ended
Jan. 31, 2012
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment [Text Block]
(5)           Property, Plant and Equipment, Net
 
Property, plant and equipment, net consist of the following (in thousands):
   
January 31,
   
April 30,
 
   
2012
   
2011
 
Land, buildings and improvements
  $ 29,597     $ 29,344  
Furniture and equipment
    22,824       22,593  
      52,421       51,937  
Less accumulated depreciation
    (26,205 )     (23,787 )
    $ 26,216     $ 28,150