Note 5 - Share-based Compensation - Summary of Share-based Compensation Expense (Benefit) (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Jun. 27, 2026 |
Jun. 28, 2025 |
Jun. 27, 2026 |
Jun. 28, 2025 |
|
| Employee share-based compensation | $ 1,553 | $ 1,827 | $ 4,684 | $ 4,580 |
| The above compensation is net of tax benefits | 395 | 439 | 1,158 | 1,139 |
| Share-Based Payment Arrangement, Option [Member] | ||||
| Employee share-based compensation | 0 | 114 | 0 | 416 |
| Stock Purchase Plan [Member] | ||||
| Employee share-based compensation | 90 | 103 | 397 | 330 |
| Stock Issued to Outside Directors [Member] | ||||
| Employee share-based compensation | 0 | 31 | 41 | 109 |
| Restricted Stock Units (RSUs) [Member] | ||||
| Employee share-based compensation | 1,024 | 1,084 | 2,853 | 2,679 |
| Performance Shares [Member] | ||||
| Employee share-based compensation | $ 439 | $ 495 | $ 1,393 | $ 1,046 |