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Commitments and Contingencies (Details Narrative) - USD ($) $ in Millions	Apr. 30, 2021	Jul. 31, 2020
CommitmentsAndContingenciesDetailsLineItems [Line Items]
Accrued expenses	$ 41.6	$ 40.8
Purchase commitment	3.4
Performance bonds outstanding	19.8
Restricted cash and cash equivalents	15.3	$ 11.0
Federal Telecommunications Relay Services Fund [Member]
CommitmentsAndContingenciesDetailsLineItems [Line Items]
Regulatory fees audit	2.9
Universal Service Fund [Member]
CommitmentsAndContingenciesDetailsLineItems [Line Items]
Regulatory fees audit	$ 1.8

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In certain circumstances, the company is required to provide performance bonds in connection with its contractual commitments. Company has indemnified the surety for any expenses paid out under these performance bonds.

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Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities.

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Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

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