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Equity Investments (Details 1) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Apr. 30, 2020 | Apr. 30, 2019 | Apr. 30, 2020 | Apr. 30, 2019
Equity Investments [Abstract] |  |  |  |
Balance, beginning of period | $ 4,345 | $ 3,045 | $ 3,919 | $ 1,883
Adoption of change in accounting for equity investments |  |  |  | 1,213
Adjusted balance | 4,345 | 3,045 | 3,919 | 3,096
Adjustment for observable transactions involving a similar investment from the same issuer | (412) | 599 | 14 | 550
Redemptions |  |  |  | (2)
Impairments |  |  |  |
Balance, end of the period | $ 3,933 | $ 3,644 | $ 3,933 | $ 3,644

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- Definition Amount of equity investments adjustment. + References No definition available. + Details
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- Definition Equity securities without readily determinable fair value, redemptions, annual amount. + References No definition available. + Details
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- Definition Equity securities without readily determinable fair value upward downward price adjustment annual amount. + References No definition available. + Details
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- References No definition available. + Details
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- Definition Adoption of change in accounting for equity investments. + References No definition available. + Details
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- Definition Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=99377092&loc=SL75136599-209740 + 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=116654751&loc=SL75117539-209714 + Details
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