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Note I - Stock-based Compensation (Tables) | 6 Months Ended
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Oct. 31, 2024
Notes Tables |
Stock Option Plan Comparison [Table Text Block] |
|  | Restated Option Plan |  |  | 2024 Equity Incentive Plan |
Minimum exercise price as a percentage of fair market value at date of grant |  |  | 100% |  |  |  | 100% |
Last expiration date for outstanding options |  | May 9, 2034 |  |  |  | N/A |
Shares available for grant at October 31, 2024 |  |  | - |  |  |  | 449,085 |
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
|  | Six Months Ended October 31, |
|  | 2024 |  |  | 2023 |
Expected terms (years) |  |  | 4.9 |  |  |  | 5.5 |
Risk-free interest rate |  |  | 5.13 | % |  |  | 3.66 | %
Volatility |  |  | 60 | % |  |  | 58 | %
Dividend yield |  |  | - |  |  |  | - |
Schedule of Share-based Compensation, Stock Options, Exercises [Table Text Block] |
|  | Six Months Ended October 31, |
(Dollars in thousands) |  | 2024 |  |  | 2023 |
Options exercised |  |  | - |  |  |  | 30,000 |
Cash received from option exercises |  | $ | - |  |  | $ | - |
Intrinsic value of options exercised |  | $ | - |  |  | $ | 1,036 |

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- Definition Schedule of comparison of stock option plans. + References No definition available. + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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