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Related Party Transactions (Details) - Schedule of activities between the Company and IDT - USD ($) $ in Thousands | Jul. 31, 2021 | Jul. 31, 2020
--- | --- | ---
Schedule of activities between the Company and IDT [Abstract] |  |  |
Balance at beginning of year |  | $ (39) |
Legal services provided by IDT |  | 113 | 107
Consulting services provided to IDT |  | (144) | (148)
Cash payments received from IDT |  | 64 | 14
Cash payments made to IDT |  |  | (12)
Due from IDT | [1] | $ (6) | $ (39)
[1] | Due from IDT is included in other current assets.

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