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Segment Information (Tables)
3 Months Ended
Jul. 31, 2012
Segment Information [Abstract]  
Segment Information

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

 

                                 
    Domestic
Operations
    International
Operations
    Corporate     Total  

Three months ended July 31, 2012

                               

Revenues from external customers

  $ 22,629     $ 4,054     $ —       $ 26,683  

Intersegment revenues

    730       504       (1,234     —    

Operating earnings (loss) before income taxes

    1,884       246       (1,071     1,059  

Three months ended July 31, 2011

                               

Revenues from external customers

  $ 23,396     $ 2,925     $ —       $ 26,321  

Intersegment revenues

    273       172       (445     —    

Operating earnings (loss) before incomes taxes

    717       243       (823     137