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Note 13 - Additional Financial Statement Information (Tables) | 6 Months Ended
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Jun. 28, 2025
Notes Tables |
Schedule of Other Nonoperating Income (Expense) [Table Text Block] |
|  | Fiscal Quarter Ended |  |  | Six Fiscal Months Ended |
|  | June 28, 2025 |  |  | June 29, 2024 |  |  | June 28, 2025 |  |  | June 29, 2024 |
Foreign currency exchange (loss) gain |  | $ | (1,763 | ) |  | $ | 1,287 |  |  | $ | (2,735 | ) |  | $ | 2,877 |
Interest income |  |  | 549 |  |  |  | 499 |  |  |  | 869 |  |  |  | 822 |
Pension expense |  |  | (11 | ) |  |  | (10 | ) |  |  | (22 | ) |  |  | (20 | )
Other |  |  | (37 | ) |  |  | (75 | ) |  |  | (50 | ) |  |  | (118 | )
|  | $ | (1,262 | ) |  | $ | 1,701 |  |  | $ | (1,938 | ) |  | $ | 3,561 |
Schedule of Accrued Liabilities [Table Text Block] |
|  | June 28, 2025 |  |  | December 31, 2024 |
Customer advance payments |  | $ | 8,730 |  |  | $ | 7,009 |
Accrued restructuring |  |  | 178 |  |  |  | 235 |
Goods received, not yet invoiced |  |  | 3,030 |  |  |  | 1,572 |
Accrued taxes, other than income taxes |  |  | 1,540 |  |  |  | 1,994 |
Accrued commissions |  |  | 3,749 |  |  |  | 3,895 |
Accrued professional fees |  |  | 2,127 |  |  |  | 1,587 |
Accrued technical warranty |  |  | 820 |  |  |  | 857 |
Current accrued pensions and other post retirement costs |  |  | 596 |  |  |  | 596 |
Other |  |  | 2,711 |  |  |  | 1,980 |
|  | $ | 23,481 |  |  | $ | 19,725 |

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- Definition Tabular disclosure of the components of non-operating income or non-operating expense that may include amounts earned from dividends, interest on securities, gains (losses) on securities sold, equity earnings of unconsolidated affiliates, net gain (loss) on sales of business, interest expense and other miscellaneous income or expense items. + References No definition available. + Details
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