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Other (Expense) Income, Net (Details) - Schedule of other (expense) income, net - USD ($) $ in Thousands	3 Months Ended
	Oct. 31, 2020	Oct. 31, 2019
Schedule of other (expense) income, net [Abstract]
Foreign currency transaction (losses) gains	$ (428)	$ 671
Write-off of tax assets related to prior periods		(474)
(Losses) gains on investments	(920)	26
Other	(32)	11
Total other (expense) income, net	$ (1,380)	$ 234

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Write-off of tax assets related to prior periods.

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Amount before tax of foreign currency transaction realized gain (loss) recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 20
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Amount of realized and unrealized gain (loss) on investment.

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The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).

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Amount of income (expense) related to nonoperating activities, classified as other.

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