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Equity Investments (Tables) | 12 Months Ended
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Jul. 31, 2019
Equity Investments [Abstract] |
Schedule of equity investments |
July 31 (dollars in thousands) |  | 2019 |  |  | 2018 |
Zedge, Inc. Class B common stock, 42,282 shares at July 31, 2019 and 2018 |  | $ | 68 |  |  | $ | 125 |
Rafael Class B common stock, 27,419 and 25,803 shares at July 31, 2019 and 2018, respectively |  |  | 567 |  |  |  | 235 |
Mutual funds |  |  | 5,053 |  |  |  | — |
Current "Equity investments" |  | $ | 5,688 |  |  | $ | 360 |
Visa Series C Preferred |  | $ | 3,619 |  |  | $ | 1,580 |
Hedge funds |  |  | 5,475 |  |  |  | 4,787 |
Other |  |  | 225 |  |  |  | 266 |
Noncurrent "Equity investments" |  | $ | 9,319 |  |  | $ | 6,633 |
Schedule of carrying value of equity investments |
Year ended July 31, 2019 (in thousands) |  |  |
Balance at July 31, 2018 |  | $ | 1,883 |
Adoption of change in accounting for equity investments |  |  | 1,213 |
Balance at August 1, 2018 |  |  | 3,096 |
Adjustment for observable transactions involving a similar investment from the same issuer |  |  | 826 |
Redemptions |  |  | (3 | )
Impairments |  |  | — |
BALANCE AT JULY 31, 2019 |  | $ | 3,919 |
Schedule of unrealized gains and losses for all equity investments |
Year ended July 31 (in thousands) |  | 2019 |  |  | 2018 |  |  | 2017 |
Net gains (losses) recognized during the period on equity investments |  | $ | 1,779 |  |  | $ | (6 | ) |  | $ | 355 |
Less: net gains recognized during the period on equity investments redeemed during the period |  |  | — |  |  |  | — |  |  |  | (378 | )
Unrealized gains (losses) recognized during the period on equity investments still held at the reporting date |  | $ | 1,779 |  |  | $ | (6 | ) |  | $ | (23 | )

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