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Business Segment and Geographic Information (Details) - Schedule of net long-lived assets and total assets - USD ($)
$ in Thousands
 12 Months Ended
Jul. 31, 2021
Jul. 31, 2020
Long-lived assets, net:    
United States $ 1,900 $ 2,513
Foreign 641 542
Total 2,541 3,055
Total assets:    
United States 32,745 7,730
Foreign 4,732 4,275
Total $ 37,477 $ 12,005