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Capital Stock and Changes in Capital Accounts, Warrants (Details) - The Learning House, Inc. [Member] - Warrants [Member] - USD ($) $ / shares in Units, $ in Millions | Nov. 01, 2018 | Apr. 30, 2022 | Oct. 31, 2018
--- | --- | --- | ---
Acquisitions [Abstract] |  |  |
Issuance of warrants | $ 0.6 |  |
Term of warrants |  | 3 years |
Class A Common Stock [Member] |  |  |
Acquisitions [Abstract] |  |  |
Number of shares of common stock warrant holders are allowed to purchase (in shares) |  |  | 400,000
Exercise price per share (in dollars per share) |  |  | $ 90.00

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