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Schedule of Weighted-average Number of Shares Used in the Calculation of Basic and Diluted Earnings Per Share (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2023	Apr. 30, 2022
Earnings per share attributable to IDT Corporation common stockholders:
Basic weighted-average number of shares	25,518	25,901	25,544	25,706
Stock options	7	301	9	575
Non-vested restricted Class B common stock	87	3	36	174
Diluted weighted-average number of shares	25,612	26,205	25,589	26,455

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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