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Other Operating Expense, Net (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jan. 31, 2020 | Jan. 31, 2019 | Jan. 31, 2020 | Jan. 31, 2019
Other Operating Expense [Abstract] |  |  |  |
Corporate-Straight Path Communications Inc. class action legal fees net of insurance proceeds | $ (160) | $ (330) | $ (421) | $ (525)
net2phone-indemnification claim and other, net | (169) |  | (534) |
net2phone—other, net | (63) | 25 | (63) | 25
Telecom & Payment Services-accrual for non-income related taxes related to a foreign subsidiary |  | (2,000) | (2,150) | (3,100)
Telecom & Payment Services-gain on sale of calling card business in Asia |  | 215 |  | 215
Total other operating expense, net | $ (392) | $ (2,090) | $ (3,168) | $ (3,385)

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- Definition Amount of Telecom and Payment Services - gain on sale of calling card business in Asia. + References No definition available. + Details
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