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Schedule of Carrying Value of Equity Investments (Details) - USD ($) $ in Thousands | 3 Months Ended
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Oct. 31, 2021 | Oct. 31, 2020
Cash and Cash Equivalents [Abstract] |  |
Balance, beginning of period | $ 2,743 | $ 4,109
Redemption for Visa mandatory release assessment |  | (1,870)
Adjustment for observable transactions involving a similar investment from the same issuer | (346) | (130)
Impairments |  |
Balance, end of the period | $ 2,397 | $ 2,109

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- Definition Redemption for Visa mandatory release assessment + References No definition available. + Details
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- Definition Amount of investment in equity security without readily determinable fair value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123583765&loc=SL75117539-209714 + Details
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- Definition Amount of impairment loss on investment in equity security without readily determinable fair value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123583765&loc=SL75117539-209714 + Details
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