Note 12 - Capital Stock and Stock Compensation - Changes in Non-vested Options (Details) - Restricted Stock [Member] - $ / shares |
12 Months Ended | |
|---|---|---|
Nov. 29, 2025 |
Nov. 30, 2024 |
|
| Restricted shares outstanding (in shares) | 61,456 | 94,409 |
| Granted, grant date fair value (in dollars per share) | $ 14.11 | |
| January 11 2023 [Member] | ||
| Restricted shares outstanding (in shares) | 13,900 | |
| Granted, grant date fair value (in dollars per share) | $ 17.55 | |
| Original vesting period (Year) | 3 years | |
| Remaining restriction period (Year) | 1 month 6 days | |
| October 29 2024 [Member] | ||
| Restricted shares outstanding (in shares) | 30,000 | |
| Granted, grant date fair value (in dollars per share) | $ 14.11 | |
| Original vesting period (Year) | 3 years | |
| Remaining restriction period (Year) | 1 year 10 months 24 days | |
| March 12, 2025 [Member] | ||
| Restricted shares outstanding (in shares) | 17,556 | |
| Granted, grant date fair value (in dollars per share) | $ 15.95 | |
| Original vesting period (Year) | 1 year | |
| Remaining restriction period (Year) | 3 months 18 days |