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Schedule of Unrealized Gains (losses) Gains for All Equity Investments (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Apr. 30, 2024 | Apr. 30, 2023 | Apr. 30, 2024 | Apr. 30, 2023
Net losses recognized during the period on equity investments | $ (78) | $ (480) | $ (280) | $ (2,649)
Less: net gains recognized during the period on equity investments sold during the period |  |  | 130 | 18
Unrealized losses recognized during the period on equity investments still held at the reporting date | (78) | (480) | (410) | (2,667)
Rafael Class B Common Stock [Member] |  |  |  |
Unrealized losses recognized during the period on equity investments still held at the reporting date | (61) | 11 | (115) | 20
Zedge Class B Common Stock [Member] |  |  |  |
Unrealized losses recognized during the period on equity investments still held at the reporting date | $ (36) | $ (9) | $ 13 | $ (33)

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- Definition Amount of unrealized and realized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(3)(d)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 321 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479536/321-10-50-4 + Details
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- Definition Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(3)(d)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 321 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479536/321-10-50-4 + Details
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