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INCOME TAXES (Details) - USD ($) $ in Thousands | 3 Months Ended
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Oct. 31, 2017 | Oct. 31, 2016
Income Tax Disclosure [Abstract] |  |  |
Provision for income taxes | $ 2,259 | $ 111 | [1]
Valuation allowance release |  | $ 1,500 |
[1] | See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.

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