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Commitments and Contingencies (Details Narrative) - USD ($) $ in Millions | Oct. 31, 2021 | Jul. 31, 2021
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Loss Contingencies [Line Items] |  |
Accrued Liabilities | $ 38.2 | $ 38.3
Purchase Obligation | 4.0 |
Performance bonds outstanding | 19.6 |
Federal Telecommunications Relay Services Fund [Member] |  |
Loss Contingencies [Line Items] |  |
Loss Contingency, Estimate of Possible Loss | 2.9 |
Universal Service Fund [Member] |  |
Loss Contingencies [Line Items] |  |
Loss Contingency, Estimate of Possible Loss | $ 1.8 |

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