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Segment Information
 6 Months Ended
Oct. 31, 2011
Segment Information [Abstract]  
Segment Information

D. Segment Information

The following table provides financial information by business segments for the three and six months ended October 31, 2011 and 2010 (in thousands):

 

     Domestic
Operations		      International
Operations		     Corporate     Total  

Three months ended October 31, 2011

          

Revenues from external customers

    $ 23,826       $ 2,136      $ —        $ 25,962   

Intersegment revenues

      128         94        (222 )      —     

Operating earnings (loss) before income taxes

      650         (43 )      (859 )      (252 ) 

Three months ended October 31, 2010

          

Revenues from external customers

    $ 22,269       $ 3,356      $ —        $ 25,625   

Intersegment revenues

      504         4        (508 )      —     

Operating earnings (loss) before incomes taxes

      2,112         105        (923 )      1,294   

 

     Domestic
Operations		      International
Operations		      Corporate     Total  

Six months ended October 31, 2011

           

Revenues from external customers

    $ 47,222       $ 5,061       $ —        $ 52,283   

Intersegment revenues

      401         266         (667 )      —     

Operating earnings (loss) before income taxes

      1,367         200         (1,682 )      (115 ) 

Six months ended October 31, 2010

           

Revenues from external customers

    $ 43,216       $ 7,267       $ —        $ 50,483   

Intersegment revenues

      1,167         647         (1,814 )      —     

Operating earnings (loss) before incomes taxes

      3,697         333         (1,683 )      2,347