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Sale of Interest in Fabrix Systems Ltd. (Tables) | 9 Months Ended
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Apr. 30, 2015
Sale of Interest in Fabrix Systems Ltd. [Abstract] |
Schedule of consolidated statements of income |
|  | Three Months Ended April 30, |  |  | Nine Months Ended April 30, |
|  | 2015 |  |  | 2014 |  |  | 2015 |  |  | 2014 |
|  | (in thousands) |
Income (loss) before income taxes |  | $ | — |  |  | $ | 296 |  |  | $ | 917 |  |  | $ | (1,380 | )
Income (loss) before income taxes attributable to IDT Corporation |  | $ | — |  |  | $ | 261 |  |  | $ | 1,325 |  |  | $ | (1,221 | )

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