Note 12 - Accounting for the Costs of Computer Software Developed for Internal Use (Details Textual) - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Apr. 30, 2026 |
Apr. 30, 2025 |
Apr. 30, 2024 |
|
| Capitalized Cost, Software to be Sold, Leased, or Marketed, Addition | $ 59,000 | $ 62,000 | |
| Capitalized Computer Software, Amortization | $ 43,000 | $ 128,000 | $ 62,000 |
| Minimum [Member] | |||
| Finite-Lived Intangible Asset, Useful Life (Year) | 3 years | ||
| Maximum [Member] | |||
| Finite-Lived Intangible Asset, Useful Life (Year) | 5 years | ||