Note 8 - Federal, State and Local Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands |
Jul. 31, 2025 |
Apr. 30, 2025 |
|---|---|---|
| Unrealized gain on securities held for sale | $ (308) | $ (242) |
| Total federal tax liability | 13,482 | 13,195 |
| Unrealized gain/(loss) on securities held for sale | 308 | 242 |
| Domestic Tax Jurisdiction [Member] | ||
| Deferred gain on deconsolidation of EAM | 10,669 | 10,669 |
| Deferred non-cash post-employment compensation | (372) | (372) |
| Depreciation and amortization | 68 | 78 |
| Unrealized gain on securities held for sale | 1,410 | 1,127 |
| Right of Use Asset | (105) | (114) |
| Deferred charges | (87) | (129) |
| Other | (524) | (487) |
| Total federal tax liability | 11,059 | 10,772 |
| Unrealized gain/(loss) on securities held for sale | (1,410) | (1,127) |
| State and Local Jurisdiction [Member] | ||
| Deferred gain on deconsolidation of EAM | 2,329 | 2,287 |
| Deferred non-cash post-employment compensation | (81) | (80) |
| Depreciation and amortization | 15 | 16 |
| Other | (148) | (42) |
| Total federal tax liability | $ 2,423 | $ 2,423 |