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SEGMENT INFORMATION - Summarized Financial Information of Capital Expenditures, Depreciation, and Amortization (Details) - USD ($)
$ in Thousands
12 Months Ended
Jul. 31, 2021
Jul. 31, 2020
Segment Reporting Information [Line Items]    
Capital expenditures $ 1,217 $ 1,873
Depreciation 3,403 4,111
Operating Segments | Supply Chain    
Segment Reporting Information [Line Items]    
Capital expenditures 1,218 1,873
Depreciation $ 3,403 $ 4,111