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Commitments and Contingencies (Details Narrative) - USD ($) $ in Millions | Apr. 30, 2023 | Jul. 31, 2022 | Jul. 31, 2021
--- | --- | --- | ---
Product Liability Contingency [Line Items] |  |  |
Accrued liabilities | $ 29.1 | $ 33.2 |
Purchase obligation | 7.9 |  |
Performance bonds outstanding | 25.8 |  |
Universal Service Fund [Member] |  |  |
Product Liability Contingency [Line Items] |  |  |
Accrued liabilities | $ 1.8 |  |
Federal Telecommunications Relay Services Fund [Member] |  |  |
Product Liability Contingency [Line Items] |  |  |
Accrued liabilities |  |  | $ 2.9

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