Note 10 - Stock-based Compensation - Summary of Liability-classified Performance Awards (Details) - Liability-classified Performance Award [Member] $ in Thousands |
Apr. 30, 2026
USD ($)
|
|||||
|---|---|---|---|---|---|---|
| Estimated liability | $ 3,197 | [1] | ||||
| Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount | $ 510 | [2] | ||||
| ||||||