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Accumulated Other Comprehensive Income (Loss) (Tables) | 12 Months Ended
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Apr. 30, 2025
Equity [Abstract] |
Schedule of Before Tax Income (Loss) Related Income Tax Effect and Accumulated Balances | The before tax income (loss), related income tax effect, and accumulated balances are as follows:
$ in thousands |  | Foreign Currency Translation Adjustment |  | Minimum Pension Liability Adjustment |  | Total Accumulated Other Comprehensive Income (Loss)
Balance at April 30, 2023 |  | $ | (2,833) |  |  | $ | (609) |  |  | $ | (3,442) |
Foreign currency translation adjustment |  | (549) |  |  | (49) |  |  | (598) |
Change in unrecognized actuarial loss on pension obligations |  | — |  |  | 509 |  |  | 509 |
Settlement loss included in net income |  | — |  |  | 4,019 |  |  | 4,019 |
Income taxes on postretirement benefit plans |  | — |  |  | (3,870) |  |  | (3,870) |
Balance at April 30, 2024 |  | (3,382) |  |  | — |  |  | (3,382) |
Foreign currency translation adjustment |  | (421) |  |  | — |  |  | (421) |
Balance at April 30, 2025 |  | $ | (3,803) |  |  | $ | — |  |  | $ | (3,803) |

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- Definition Tabular disclosure of components of comprehensive income (loss). Includes, but is not limited to, foreign currency translation adjustments, foreign currency transactions designated as economic hedges of a net investment in foreign entity, gain (loss) and prior service cost (credit) for pension plans and other postretirement benefit plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Paragraph 1 -Section 45 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-1 + Details
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