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Acquisition of Versature Corp (Tables)
6 Months Ended
Jan. 31, 2019
Acquisition of Versature Corp [Abstract]  
Schedule of consolidated balance sheet and acquisition date fair value of total consideration transferred

Trade accounts receivable $370 
Prepaid expenses  65 
Property, plant and equipment  1,826 
Non-compete agreement  600 
Customer relationships  2,930 
Tradename  490 
Other assets  486 
Trade accounts payable  (81)
Accrued expenses  (523)
Other liabilities  (710)
Net assets excluding cash acquired $5,453 
     
Supplemental information:    
Cash paid $5,870 
Cash acquired  (417)
Total consideration, net of cash acquired $5,453 
Schedule of business acquisition pro forma information

  Three Months Ended
January 31,
  Six Months Ended
January 31,
 
  2019  2018  2019  2018 
  (in thousands) 
Revenues $349,473  $397,362  $712,673  $792,284 
                 
Net income (loss) $489  $1,641  $(867) $(319)