Note 15 - Equity Incentive Plan and Stock Based Compensation (Details Textual) - shares |
12 Months Ended | |||
|---|---|---|---|---|
Apr. 21, 2026 |
Feb. 25, 2020 |
Nov. 30, 2025 |
Nov. 30, 2024 |
|
| Non-qualified Stock Units to Non-employee Directors, Quarterly [Member] | ||||
| Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized (in shares) | 3,000 | 1,000 | ||
| The 2020 Plan [Member] | ||||
| Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized (in shares) | 500,000 | 500,000 | ||
| The 2011 Plan [Member] | ||||
| Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares) | 0 | |||