| Note 16 - Stock-based Compensation - Summary of RSU Activity (Details) | 9 Months Ended | 
|---|---|
| Aug. 31, 2025  shares | |
| Unvested and outstanding (in shares) | 915,230 | 
| Unvested and outstanding (in shares) | 922,813 | 
| Restricted Stock Units (RSUs) [Member] | |
| Granted, RSU (in shares) | 120,830 | 
| Settled, RSU (in shares) | (106,001) | 
| Forfeited, RSU (in shares) | (7,246) | 
| X | ||||||||||
| 
- Definition The number of equity instruments settled under share based compensation arrangement. No definition available. 
 | 
| X | ||||||||||
| 
- Definition Number of shares under non-option equity instrument agreements that were cancelled as a result of occurrence of a terminating event. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
 | 
| X | ||||||||||
| 
- Definition Net number of non-option equity instruments granted to participants. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
 | 
| X | ||||||||||
| 
- Definition Number of equity instruments other than options outstanding, including both vested and non-vested instruments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
 | 
| X | ||||||||||
| 
- Details 
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