The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Balance Type:	credit
Period Type:	instant

- Definition

Description of the terms of a credit facility arrangement. Terms typically include interest rate, collateral required, guarantees required, repayment requirements, and restrictions on use of assets and activities of the entity.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

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- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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- Definition

The cash inflow from a borrowing supported by a written promise to pay an obligation.

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Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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The cash outflow for a borrowing supported by a written promise to pay an obligation.

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Revolving Credit Facility and Note Payable (Details Narrative) - USD ($) $ in Thousands			1 Months Ended	12 Months Ended
	Apr. 29, 2020	Apr. 20, 2020	Oct. 31, 2019	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2020	May 17, 2021
Line of Credit Facility [Line Items]
Repayments of lines of credit				$ 2,566		$ 1,429
Proceeds from lines of credit				2,566		1,429
Proceeds from Notes Payable						10,000
Repayments of Notes Payable						$ 10,000
IDT Telecom [Member]
Line of Credit Facility [Line Items]
Repayments of lines of credit				2,600
Proceeds from lines of credit				2,600
TD Bank [Member]
Line of Credit Facility [Line Items]
Proceeds from Notes Payable		$ 10,000
Repayments of Notes Payable	$ 10,000
Revolving Credit Facility [Member] \| TD Bank [Member]
Line of Credit Facility [Line Items]
Line of credit, maximum borrowing capacity							$ 25,000
Revolving credit amount outstanding				$ 0	$ 0
Credit facility, description				The revolving credit facility is secured by primarily all of IDT Telecom’s assets. The principal outstanding bears interest per annum at the Intercontinental Exchange Benchmark Administration Ltd. LIBOR multiplied by the Regulation D maximum reserve requirement plus 125 to 175 basis points, depending upon IDT Telecom’s leverage ratio as computed for the most recent fiscal quarter. Interest is payable monthly, and all outstanding principal and any accrued and unpaid interest is due on May 16, 2024. IDT Telecom pays a quarterly unused commitment fee on the average daily balance of the unused portion of the $25.0 million commitment of 30 to 85 basis points, depending upon IDT Telecom’s leverage ratio as computed for the most recent fiscal quarter.
Revolving credit, unused portion amount							$ 25,000
Revolving Credit Facility [Member] \| TD Bank [Member] \| Credit Agreement [Member]
Line of Credit Facility [Line Items]
Line of credit, maximum borrowing capacity			$ 25,000
Credit facility, description				The principal outstanding incurred interest per annum at the LIBOR rate adjusted by the Regulation D maximum reserve requirement plus 125 basis points.
Revolving credit, unused portion amount			$ 25,000
Average percentage of commitment fee per annum			0.30%