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Disposition - Narrative (Details) - USD ($) |  | 12 Months Ended |
--- | --- | --- | ---
Nov. 07, 2023 | Jul. 31, 2025 | Jul. 31, 2024 | Jul. 31, 2023 | Oct. 31, 2024
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Gain (loss) on disposition of business |  | $ 0 | $ (1,199,000) | $ 0 |
Less reserve for excess and obsolete inventories |  | $ 26,423,000 | $ 18,271,000 |  |
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration] |  | Gain (loss) on disposition of business |  |  |
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Solid-State RF Microwave High Power Amplifiers and Control Components Product Line |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Divestiture preliminary purchase price | $ 35,459,000 |  |  |  |
Proceeds from divestiture | $ 33,277,000 |  |  |  |
Disposal Group, Disposed of by Sale, Not Discontinued Operations | CGC Technology Limited |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Reversed revenue |  | $ 4,157,000 |  |  |
Reversed contract cost |  | 1,403,000 |  |  |
Restructuring charges |  | $ 3,485,000 |  |  |
Less reserve for excess and obsolete inventories |  |  |  |  | $ 2,948,000

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