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v3.25.2

Capital Stock - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  | 12 Months Ended
--- | --- | --- | ---
Oct. 22, 2024 | Sep. 20, 2024 | Apr. 30, 2025 | Apr. 30, 2024 | Apr. 30, 2023
Class of Stock [Line Items] |  |  |  |  |
Common shares, authorized shares (in shares) |  |  | 50,000,000 | 50,000,000 |
Common shares, par value per share (in dollars per share) |  | $ 0.01 | $ 0.01 | $ 0.01 |
Preferred shares, authorized shares (in shares) |  |  | 1,000,000 | 1,000,000 |
Preferred shares, par value per share (in dollars per share) |  |  | $ 0.01 | $ 0.01 |
Preferred shares, issued shares (in shares) |  |  | 0 | 0 |
Issuance of common stock | $ 73,800 |  | $ 74,106 | $ 282 | $ 286
Common shares, outstanding (in shares) |  |  | 8,263,280 | 6,394,675 |
Over-Allotment Option |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Expiration period (in days) |  | 30 days |  |  |
Grant of option shares (in shares) |  | 255,000 |  |  |
Sale of common stock (in shares) | 138,272 |  |  |  |
Proceeds from sale of stock | $ 5,600 |  |  |  |
Public Offering |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Issuance of common stock (in shares) |  | 1,700,000 |  |  |
Shares issued (in dollars per share) |  | $ 43.00 |  |  |
Issuance of common stock |  | $ 73,800 |  |  |
Over-Allotment Option | Over-Allotment Option |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Shares issued (in dollars per share) | $ 43.00 |  |  |  |
Subsidiaries |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Preferred shares, par value per share (in dollars per share) |  |  | $ 1.00 |  |
Preferred shares, issued shares (in shares) |  |  | 500,000 |  |
Preferred Stock, dividend rate (in percent) |  |  | 8.00% |  |
Preferred stock right of shareholder (in shares) |  |  | 400,000 |  |
Preferred stock, right to shareholder value of redeemed stock |  |  | $ 400 |  |

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