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Segment Information
 6 Months Ended
Oct. 31, 2012
Segment Information [Abstract]  
Segment Information

C. Segment Information

The following table provides financial information by business segments for the three and six months ended October 31, 2012 and 2011 (in thousands):

 

                                 
    Domestic
Operations		     International
Operations		     Corporate     Total  

Three months ended October 31, 2012

                                

Revenues from external customers

   $ 25,683     $ 5,502     $ —       $ 31,185  

Intersegment revenues

     688       918       (1,606 )      —    

Operating earnings (loss) before income taxes

     1,438       784       (1,001 )      1,221  

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 ) 
                                 
    Domestic
Operations		     International
Operations		     Corporate     Total  

Six months ended October 31, 2012

                                

Revenues from external customers

   $ 48,312     $ 9,556     $ —       $ 57,868  

Intersegment revenues

     1,418       1,422       (2,840 )      —    

Operating earnings (loss) before income taxes

     3,322       1,030       (2,072 )      2,280  

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 )