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Schedule of Continuous Unrealized Loss Position for 12 Months or Longer (Details) - USD ($) $ in Thousands | Oct. 31, 2025 | Jul. 31, 2025
--- | --- | ---
Debt Securities, Available-for-Sale [Line Items] |  |
Unrealized Losses | $ 171 | $ 214
Fair Value | 3,155 | 3,296
US Treasury Bill Securities [Member] |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Unrealized Losses | 15 | 19
Fair Value | 333 | 329
Corporate Bond Securities [Member] |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Unrealized Losses | 156 | 195
Fair Value | $ 2,822 | $ 2,967

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