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Segment Information
 9 Months Ended
Jan. 31, 2013
Segment Information [Abstract]  
Segment Information

C. Segment Information

The following table provides financial information by business segments for the three and nine months ended January 31, 2013 and 2012 (in thousands):

 

                                 
    Domestic
Operations		     International
Operations		     Corporate     Total  

Three months ended January 31, 2013

                                

Revenues from external customers

   $ 20,445     $ 7,005     $ —       $ 27,450  

Intersegment revenues

     2,415       454       (2,869 )      —    

Operating earnings (loss) before income taxes

     1,009       992       (1,042 )      959  

Three months ended January 31, 2012

                                

Revenues from external customers

   $ 17,142     $ 4,432     $ —       $ 21,574  

Intersegment revenues

     1,369       511       (1,880 )      —    

Operating earnings (loss) before income taxes

     233       504       (873 )      (136 ) 

 

                                 
    Domestic
Operations		     International
Operations		     Corporate     Total  

Nine months ended January 31, 2013

                                

Revenues from external customers

   $ 68,757     $ 16,561     $ —       $ 85,318  

Intersegment revenues

     3,833       1,876       (5,709 )      —    

Operating earnings (loss) before income taxes

     4,331       2,022       (3,114 )      3,239  

Nine months ended January 31, 2012

                                

Revenues from external customers

   $ 64,364     $ 9,493     $ —       $ 73,857  

Intersegment revenues

     1,770       777       (2,547 )      —    

Operating earnings (loss) before income taxes

     1,600       704       (2,555 )      (251 )