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Property and Equipment (Tables)
12 Months Ended
Jul. 31, 2017
Property and Equipment [Abstract]  
Schedule of property and equipment
July 31,
(in thousands)
 2007  2016 
Capitalized software and technology development costs $6,419  $5,001 
Other  297   230 
   6,716   5,231 
Less accumulated depreciation and amortization  (4,038)  (3,388)
Total $2,678  $1,843