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IDT Financial Services Holding Limited Assets and Liabilities Held for Sale (Details) - USD ($) $ in Thousands | Jan. 31, 2018 | Jul. 31, 2017
--- | --- | ---
Current assets held for sale: |  |
Cash and cash equivalents | $ 6,287 | $ 5,716
Total current assets held for sale | 138,700 | 124,267
Noncurrent assets held for sale: |  |
Other assets | 5,285 | 5,134
Current liabilities held for sale: |  |
Total current liabilities held for sale | 129,423 | 115,318
Noncurrent liabilities held for sale: |  |
Total noncurrent liabilities held for sale | 642 | 550
IDT Financial Services Holding Limited [Member] |  |
Current assets held for sale: |  |
Cash and cash equivalents | 6,287 | 5,716
Restricted cash and cash equivalents | 128,153 | 115,609
Trade accounts receivable, net of allowance for doubtful accounts of $3,239 and $2,550 at January 31, 2018 and July 31, 2017, respectively | 2,919 | 1,844
Prepaid expenses | 854 | 758
Other current assets | 487 | 340
Total current assets held for sale | 138,700 | 124,267
Noncurrent assets held for sale: |  |
Property, plant and equipment, net | 19 | 24
Other intangibles, net | 164 | 165
Other assets | 5,102 | 4,945
Total noncurrent assets held for sale | 5,285 | 5,134
Current liabilities held for sale: |  |
Trade accounts payable | 2,007 | 372
Accrued expenses | 252 | 226
Customer deposits | 127,107 | 114,689
Other current liabilities | 57 | 31
Total current liabilities held for sale | 129,423 | 115,318
Noncurrent liabilities held for sale: |  |
Other liabilities | 642 | 550
Total noncurrent liabilities held for sale | $ 642 | $ 550

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