Note 7 - Derivative Financial Instruments - Locations and Amounts of Gains (Loss) (Details) - Foreign Exchange Forward [Member] - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 26, 2026 |
Sep. 27, 2025 |
Sep. 26, 2026 |
Sep. 27, 2025 |
|
| Designated as Hedging Instrument [Member] | ||||
| Hedged derivative gain (loss) | $ 620 | $ 457 | $ 2,186 | $ (8,214) |
| Not Designated as Hedging Instrument [Member] | ||||
| Foreign exchange forward contracts | $ (584) | $ (701) | $ (3,935) | $ 4,594 |