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Note 13 - Guarantees - Changes in Accrued Warranty (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 27, 2025
Sep. 28, 2024
Sep. 27, 2025
Sep. 28, 2024
Balance at beginning of period $ 3,236 $ 3,784 $ 3,093 $ 5,017
Warranty expense accruals 2,209 722 4,300 2,524
Warranty payments (1,060) (1,031) (3,008) (4,066)
Balance at end of period $ 4,385 $ 3,475 $ 4,385 $ 3,475