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IDT Financial Services Holding Limited Assets and Liabilities Held for Sale (Details) - USD ($) $ in Thousands | Jul. 31, 2018 | Jul. 31, 2017 | Jul. 31, 2016 | Jul. 31, 2015
--- | --- | --- | --- | ---
CURRENT ASSETS HELD FOR SALE: |  |  |  |
Cash and cash equivalents | $ 5,892 | $ 5,716 | $ 5,536 | $ 571
TOTAL CURRENT ASSETS HELD FOR SALE | 137,272 | 124,267 |  |
NONCURRENT ASSETS HELD FOR SALE: |  |  |  |
Other assets | 5,706 | 5,134 |  |
CURRENT LIABILITIES HELD FOR SALE: |  |  |  |
TOTAL CURRENT LIABILITIES HELD FOR SALE | 128,770 | 115,318 |  |
NONCURRENT LIABILITIES HELD FOR SALE: |  |  |  |
TOTAL NONCURRENT LIABILITIES HELD FOR SALE | 542 | 550 |  |
IDTFS Holding [Member] |  |  |  |
CURRENT ASSETS HELD FOR SALE: |  |  |  |
Cash and cash equivalents | 5,892 | 5,716 |  |
Restricted cash and cash equivalents | 128,931 | 115,609 |  |
Trade accounts receivable, net of allowance for doubtful accounts of $2,192 and $2,550 at July 31, 2018 and 2017, respectively | 1,265 | 1,844 |  |
Prepaid expenses | 1,016 | 758 |  |
Other current assets | 168 | 340 |  |
TOTAL CURRENT ASSETS HELD FOR SALE | 137,272 | 124,267 |  |
NONCURRENT ASSETS HELD FOR SALE: |  |  |  |
Property, plant and equipment, net of accumulated depreciation of $346 and $228 at July 31, 2018 and 2017, respectively | 12 | 24 |  |
Other intangibles, net of accumulated amortization of $86 and $57 at July 31, 2018 and 2017, respectively | 190 | 165 |  |
Other assets | 5,504 | 4,945 |  |
TOTAL NONCURRENT ASSETS HELD FOR SALE | 5,706 | 5,134 |  |
CURRENT LIABILITIES HELD FOR SALE: |  |  |  |
Trade accounts payable | 776 | 372 |  |
Accrued expenses | 407 | 226 |  |
Deferred revenue | 12 |  |  |
Customer deposits | 127,571 | 114,689 |  |
Other current liabilities | 4 | 31 |  |
TOTAL CURRENT LIABILITIES HELD FOR SALE | 128,770 | 115,318 |  |
NONCURRENT LIABILITIES HELD FOR SALE: |  |  |  |
Other liabilities | 542 | 550 |  |
TOTAL NONCURRENT LIABILITIES HELD FOR SALE | $ 542 | $ 550 |  |

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