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Fair Value Measurements (Details) - Schedule of fair value on a recurring basis and where they are classified within the fair value hierarchy - USD ($) $ in Thousands | Jul. 31, 2022 | Jul. 31, 2021
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Fair Value Measurements (Details) - Schedule of fair value on a recurring basis and where they are classified within the fair value hierarchy [Line Items] |  |
Available-for-sale securities | $ 36,698 |
Hedge funds | 4,764 | $ 5,268
Total | 41,462 | 5,268
Level 1 [Member] |  |
Fair Value Measurements (Details) - Schedule of fair value on a recurring basis and where they are classified within the fair value hierarchy [Line Items] |  |
Available-for-sale securities |  |
Hedge funds |  |
Total |  |
Level 2 [Member] |  |
Fair Value Measurements (Details) - Schedule of fair value on a recurring basis and where they are classified within the fair value hierarchy [Line Items] |  |
Available-for-sale securities | 36,698 |
Hedge funds |  |
Total | 36,698 |
Level 3 [Member] |  |
Fair Value Measurements (Details) - Schedule of fair value on a recurring basis and where they are classified within the fair value hierarchy [Line Items] |  |
Available-for-sale securities |  |
Hedge funds | 4,764 | 5,268
Total | $ 4,764 | $ 5,268

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- Definition Fair value of equity securities designated as available for sale, which are allocated to the segregated group of participating or dividend-paying policies and contracts identified as the closed block. Also a component of change in other comprehensive income in the period, which is reflected in the closed block disclosure. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 805 -Section 50 -Paragraph 3 -Subparagraph (b)(1) -URI https://asc.fasb.org/extlink&oid=124505872&loc=d3e30806-158569 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 805 -Section 55 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=124502525&loc=d3e31071-158570 + Details
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