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PROPERTY, PLANT AND EQUIPMENT:
12 Months Ended
Apr. 30, 2012
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment [Text Block]
(5)           PROPERTY, PLANT AND EQUIPMENT:
Property, plant and equipment consist of:
 
April 30,
 
   
2012
   
2011
 
   
(Thousands)
 
             
Land, buildings and improvements
  $ 29,624     $ 29,344  
Furniture and equipment
    22,836       22,593  
      52,460       51,937  
Less accumulated depreciation
    (26,536 )     (23,787 )
    $ 25,924     $ 28,150  
 
 
Depreciation of property, plant and equipment charged to operations amounted to $3,166,000, $3,977,000, and $6,292,000 in 2012, 2011 and 2010.