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Investments in Marketable Securities - Schedule of Available-for-Sale Securities (Details) - USD ($) $ in Thousands | Jul. 31, 2025 | Jul. 31, 2024
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Available-for-sale securities: |  |
Amortized cost |  | $ 63,300
Gross unrealized gains |  | 2
Gross unrealized (losses) |  | (37)
Fair value |  | 63,265
U.S. Treasury Bills [Member] |  |
Available-for-sale securities: |  |
Amortized cost |  | 3,969
Gross unrealized gains |  |
Gross unrealized (losses) |  | (2)
Fair value |  | 3,967
U.S. Agency [Member] |  |
Available-for-sale securities: |  |
Amortized cost |  | 4,079
Gross unrealized gains |  |
Gross unrealized (losses) |  | (3)
Fair value |  | 4,076
Corporate bonds [Member] |  |
Available-for-sale securities: |  |
Amortized cost |  | 55,252
Gross unrealized gains |  | 2
Gross unrealized (losses) |  | (32)
Fair value |  | $ 55,222

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- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 + Details
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- Definition Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 + Details
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