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Business Segment and Geographic Information (Details) - Schedule of net long-lived assets and total assets held outside of the United States - USD ($)
$ in Thousands
Jan. 31, 2021
Jul. 31, 2020
Long-lived assets, net:    
Long-lived assets, net $ 2,679 $ 3,055
Total assets:    
Total assets 21,785 12,005
United States [Member]    
Long-lived assets, net:    
Long-lived assets, net 2,231 2,513
Total assets:    
Total assets 17,229 7,730
Foreign [Member]    
Long-lived assets, net:    
Long-lived assets, net 448 542
Total assets:    
Total assets $ 4,556 $ 4,275