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Divestiture and Discontinued Operations (Tables)
6 Months Ended
Oct. 31, 2013
Discontinued Operations And Disposal Groups [Abstract]  
Schedule of Revenues and Loss Before Income Taxes Attributable to Discontinued Operations

Revenues and (loss) income before income taxes attributable to discontinued operations for the three and six months ended October 31, 2013 and 2012, respectively, are as follows:

 

     Three Months Ended     Six Months Ended  
     October 31,     October 31,  
     2013     2012     2013      2012  

Revenues

   $ 5      $ 3,498      $ 3,316       $ 7,055   

(Loss) income before income taxes

   $ (45   $ (235   $ 284       $ (451