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Acquisitions (Tables)
9 Months Ended
Apr. 30, 2020
Business Combinations [Abstract]  
Schedule of acquisition date fair value of consideration

Cash paid  $450 
Contingent consideration   375 
Total fair value of consideration  $825 
Schedule of impact of the acquisition's preliminary purchase price allocations on consolidated balance sheet
Trade accounts receivable  $142 
Other current assets   21 
Property, plant and equipment   84 
Goodwill   1,437 
Non-compete agreement (4-year useful life)   50 
Customer relationships (7-year useful life)   130 
Tradename (2-year useful life)   30 
Deferred income tax assets   118 
Other assets   10 
Trade accounts payable   (302)
Accrued expenses   (136)
Other current liabilities   (408)
Other liabilities   (351)
Net assets acquired  $825