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Fair Value Measurements (Tables) | 12 Months Ended
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Jul. 31, 2025
Fair Value Measurements [Abstract] |
Schedule of Assets Required to be Measured at Fair Value on a Recurring Basis | The Company’s assets required to be measured at fair value on a recurring basis and where they are classified within the fair value hierarchy as of July 31, 2025 and July 31, 2024 are as follows:
|  | July 31, 2025 |
|  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
Assets: |  | (in thousands) |
Convertible notes receivable classified as available-for-sale |  | $ | — |  |  | $ | — |  |  | $ | 1,858 |  |  | $ | 1,858 |
Total |  | $ | — |  |  | $ | — |  |  | $ | 1,858 |  |  | $ | 1,858 |
|  | July 31, 2024 |
|  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
Assets: |  | (in thousands) |
Available-for-sale securities - Corporate and U.S. Agency Bonds |  | $ | — |  |  | $ | 59,298 |  |  | $ | — |  |  | $ | 59,298 |
Available-for-sale securities - U.S. Treasury Bills |  |  | 3,967 |  |  |  | — |  |  |  | — |  |  |  | 3,967 |
Investment in Cyclo - Common Stock |  |  | 10,746 |  |  |  | — |  |  |  | — |  |  |  | 10,746 |
Convertible notes receivable, due from Cyclo |  |  | — |  |  |  | — |  |  |  | 5,191 |  |  |  | 5,191 |
Investment in Cyclo - Warrants |  |  | — |  |  |  | — |  |  |  | 1,264 |  |  |  | 1,264 |
Hedge funds |  |  | — |  |  |  | — |  |  |  | 2,547 |  |  |  | 2,547 |
Convertible notes receivable classified as available-for-sale |  |  | — |  |  |  | — |  |  |  | 1,146 |  |  |  | 1,146 |
Total |  | $ | 14,713 |  |  | $ | 59,298 |  |  | $ | 10,148 |  |  | $ | 84,159 |
Schedule of Fair Value of the Assets Measured at Fair Value on a Recurring Basis | The following table summarizes the changes in the fair value of the assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3):
|  | Year Ended July 31, |
|  | 2025 |  |  | 2024 |
|  | (in thousands) |
Balance, beginning of period |  | $ | 10,148 |  |  | $ | 6,905 |
Withdrawal from Hedge Fund Investments |  |  | (2,547 | ) |  |  | (2,500 | )
Unrealized gain on Hedge Fund |  |  | — |  |  |  | 63 |
Investment in Cyclo Warrants |  |  | — |  |  |  | 1,338 |
Unrealized loss on Cyclo Warrants |  |  | (1,264 | ) |  |  | (74 | )
Funding of Cyclo Convertible Notes |  |  | 19,500 |  |  |  | 4,000 |
Unrealized gain on issuance of Cyclo Convertible Notes |  |  | — |  |  |  | 1,313 |
Change in fair value of Cyclo Convertible Notes |  |  | (719 | ) |  |  | (122 | )
Conversion of Cyclo Convertible Note |  |  | (2,500 | ) |  |  | — |
Forgiveness of Cyclo Convertible Notes in the Cyclo Merger |  |  | (21,472 | ) |  |  | — |
Unrealized gain on Convertible note receivable, related party |  |  | — |  |  |  | 742 |
Realized gain on convertible note receivable, related party released from accumulated other comprehensive income |  |  | — |  |  |  | (663 | )
Conversion of convertible note receivable, related party |  |  | — |  |  |  | (2,000 | )
Unrealized gain on convertible note receivable |  |  | — |  |  |  | — |
Issuance of new convertible notes receivable |  |  | 500 |  |  |  | 1,000 |
Change in fair value of convertible notes receivable classified as available-for sale |  |  | 212 |  |  |  | 146 |
Balance, end of period |  | $ | 1,858 |  |  | $ | 10,148 |

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- Definition Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income (loss), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 101 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-101 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-3 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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