Note 4 - Restructuring Charges (Details Textual) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 27, 2026 |
Jun. 28, 2025 |
Jun. 27, 2026 |
Jun. 28, 2025 |
|
| Restructuring Charges | $ 633 | $ 1,210 | $ 1,404 | $ 7,838 |
| Pension curtailment gain | $ 0 | 1,530 | 0 | 1,530 |
| Poway Volume Manufacturing Transition [Member] | ||||
| Restructuring Charges | 1,224 | |||
| The 2025 Strategic Restructuring [Member] | ||||
| Pension curtailment gain | $ 1,500 | |||
| 2025 Strategic Restructuring [Member] | ||||
| Restructuring Charges | $ 1,403 | $ 6,615 | ||
| X | ||||||||||
- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit from event reducing expected years of future service of present employees or eliminating accrual of defined benefits for some or all future services of present employees. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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