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Equity Investments (Tables) | 6 Months Ended
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Jan. 31, 2021
Equity Investments Disclosure [Abstract] |
Schedule of equity investments |
|  | January 31, 2021 |  |  | July 31, 2020 |
|  | (in thousands) |
Zedge, Inc. Class B common stock, 42,282 shares at January 31, 2021 and July 31, 2020 |  | $ | 307 |  |  | $ | 59 |
Rafael Holdings, Inc. Class B common stock, 28,320 and 27,806 shares at January 31, 2021 and July 31, 2020, respectively |  |  | 665 |  |  |  | 389 |
Fixed income mutual funds |  |  | 23,374 |  |  |  | 5,516 |
Current equity investments |  | $ | 24,346 |  |  | $ | 5,964 |
Visa Inc. Series C Convertible Participating Preferred Stock (“Visa Series C Preferred”) |  | $ | 1,939 |  |  | $ | 3,825 |
Visa Inc. Series A Convertible Participating Preferred Stock (“Visa Series A Preferred”) |  |  | 2,416 |  |  |  | — |
Rafael Holdings, Inc. warrant |  |  | 380 |  |  |  | — |
Hedge funds |  |  | 3,481 |  |  |  | 4,783 |
Other |  |  | 2,225 |  |  |  | 225 |
Noncurrent equity investments |  | $ | 10,441 |  |  | $ | 8,833 |
Schedule of carrying value of equity investments |
|  | Three Months Ended January 31, |  |  | Six Months Ended January 31, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
|  | (in thousands) |
Balance, beginning of period |  | $ | 2,109 |  |  | $ | 3,937 |  |  | $ | 4,109 |  |  | $ | 3,919 |
Redemption for Visa mandatory release assessment |  |  | — |  |  |  | — |  |  |  | (1,870 | ) |  |  | — |
Adjustment for observable transactions involving a similar investment from the same issuer |  |  | 114 |  |  |  | 408 |  |  |  | (16 | ) |  |  | 426 |
Impairments |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Balance, end of the period |  | $ | 2,223 |  |  | $ | 4,345 |  |  | $ | 2,223 |  |  | $ | 4,345 |
Schedule of unrealized (losses) gains for all equity investments |
|  | Three Months Ended January 31, |  |  | Six Months Ended January 31, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
|  | (in thousands) |
Net gains recognized during the period on equity investments |  | $ | 1,307 |  |  | $ | 383 |  |  | $ | 387 |  |  | $ | 409 |
Less: net gains and losses recognized during the period on equity investments sold during the period |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Unrealized gains recognized during the period on equity investments still held at the reporting date |  | $ | 1,307 |  |  | $ | 383 |  |  | $ | 387 |  |  | $ | 409 |

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