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Discontinued Operations (Tables)
 12 Months Ended
Jul. 31, 2015
Discontinued Operations [Abstract]  
Summary of Financial Data of Discontinued Operations

Year ended July 31
(in thousands)		 2015  2014  2013 
          
REVENUES $—  $—  $1,130 
             
LOSS BEFORE INCOME TAXES $—  $—  $(4,621)
             
NET LOSS $—  $—  $(4,634)