| Note 9 - Advertising Costs (Details Textual) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
| Aug. 31, 2025 | Aug. 31, 2024 | Aug. 31, 2025 | Aug. 31, 2024 | |
| Advertising Expense | $ 4.0 | $ 3.2 | $ 11.9 | $ 8.6 | 
| X | ||||||||||
| 
- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. Reference 1: http://www.xbrl.org/2003/role/exampleRef 
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