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Earnings Per Share (Details Narrative) - shares
3 Months Ended 9 Months Ended
Apr. 30, 2025
Apr. 30, 2024
Apr. 30, 2025
Apr. 30, 2024
Earnings per share attributable to IDT Corporation common stockholders:        
Shares excluded from the calculation of diluted earnings per share 0 0 0 0