Business Segment and Geographic Information (Details) - Schedule of net long-lived assets and total assets held outside of the United States - USD ($) $ in Thousands	Apr. 30, 2021	Jul. 31, 2020
Long-lived assets, net:
Long-lived assets, net	$ 2,676	$ 3,055
Total assets:
Total assets	33,044	12,005
United States [Member]
Long-lived assets, net:
Long-lived assets, net	2,082	2,513
Total assets:
Total assets	27,108	7,730
Foreign [Member]
Long-lived assets, net:
Long-lived assets, net	594	542
Total assets:
Total assets	$ 5,936	$ 4,275