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Business Segment Information (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Oct. 31, 2018 | Oct. 31, 2017
Segment Reporting Information [Line Items] |  |
Revenues | $ 362,316 | $ 393,555
Income (loss) from operations | 1,282 | 83
Severance |  | 439
Other operating expense | (195) | (779)
Operating Segments [Member] | Telecom & Payment Services [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenues | 351,849 | 385,082
Income (loss) from operations | 5,269 | 4,423
Severance |  | 409
Other operating expense |  |
Operating Segments [Member] | net2phone [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenues | 10,467 | 7,788
Income (loss) from operations | (1,500) | (674)
Severance |  |
Other operating expense |  |
Operating Segments [Member] | All Other [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenues |  | 685
Income (loss) from operations |  | (547)
Severance |  |
Other operating expense |  |
Operating Segments [Member] | Corporate [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenues |  |
Income (loss) from operations | (2,487) | (3,119)
Severance |  | 30
Other operating expense | $ (195) | $ (779)

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