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v3.23.2

Note 1 - Summary of Significant Accounting Policies (Tables) | 6 Months Ended
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Jul. 01, 2023
Notes Tables |
Schedule of Inventory, Current [Table Text Block] |
|  | July 1, |  |  | December 31, |
|  | 2023 |  |  | 2022 |
Raw materials and purchased parts |  | $ | 108,335 |  |  | $ | 106,041 |
Work in process |  |  | 35,752 |  |  |  | 36,024 |
Finished goods |  |  | 29,666 |  |  |  | 28,076 |
Total inventories |  | $ | 173,753 |  |  | $ | 170,141 |
Property, Plant and Equipment [Table Text Block] |
|  | July 1, |  |  | December 31, |
|  | 2023 |  |  | 2022 |
Land and land improvements |  | $ | 7,069 |  |  | $ | 7,066 |
Buildings and building improvements |  |  | 32,831 |  |  |  | 31,161 |
Machinery and equipment |  |  | 109,325 |  |  |  | 105,109 |
|  |  | 149,225 |  |  |  | 143,336 |
Less accumulated depreciation and amortization |  |  | (82,599 | ) |  |  | (78,325 | )
Property, plant and equipment, net |  | $ | 66,626 |  |  | $ | 65,011 |
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] |
|  | Three Months Ended |  |  | Six Months Ended |
|  | July 1, |  |  | June 25, |  |  | July 1, |  |  | June 25, |
|  | 2023 |  |  | 2022 |  |  | 2023 |  |  | 2022 |
Cost of sales |  | $ | 216 |  |  | $ | 172 |  |  | $ | 396 |  |  | $ | 317 |
Research and development |  |  | 819 |  |  |  | 826 |  |  |  | 1,685 |  |  |  | 1,578 |
Selling, general and administrative |  |  | 3,397 |  |  |  | 2,935 |  |  |  | 6,265 |  |  |  | 5,460 |
Total share-based compensation |  |  | 4,432 |  |  |  | 3,933 |  |  |  | 8,346 |  |  |  | 7,355 |
Income tax benefit |  |  | (62 | ) |  |  | (836 | ) |  |  | (2,838 | ) |  |  | (2,462 | )
Total share-based compensation, net |  | $ | 4,370 |  |  | $ | 3,097 |  |  | $ | 5,508 |  |  | $ | 4,893 |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Three Months Ended |  |  | Six Months Ended |
|  | July 1, |  |  | June 25, |  |  | July 1, |  |  | June 25, |
|  | 2023 |  |  | 2022 |  |  | 2023 |  |  | 2022 |
Weighted average common shares |  |  | 47,618 |  |  |  | 48,475 |  |  |  | 47,481 |  |  |  | 48,626 |
Effect of dilutive securities |  |  | 410 |  |  |  | 453 |  |  |  | 618 |  |  |  | 622 |
|  |  | 48,028 |  |  |  | 48,928 |  |  |  | 48,099 |  |  |  | 49,248 |
Disaggregation of Revenue [Table Text Block] |
|  | Three Months Ended |  |  | Six Months Ended |
Disaggregated Net Sales |  | July 1, 2023 |  |  | June 25, 2022 |  |  | July 1, 2023 |  |  | June 25, 2022 |
Systems |  | $ | 87,312 |  |  | $ | 131,951 |  |  | $ | 190,296 |  |  | $ | 249,300 |
Non-systems |  |  | 81,609 |  |  |  | 85,275 |  |  |  | 157,996 |  |  |  | 165,683 |
Total net sales |  | $ | 168,921 |  |  | $ | 217,226 |  |  | $ | 348,292 |  |  | $ | 414,983 |
|  | Three Months Ended |  |  | Six Months Ended |
Disaggregated Net Sales |  | July 1, 2023 |  |  | June 25, 2022 |  |  | July 1, 2023 |  |  | June 25, 2022 |
Philippines |  | $ | 25,359 |  |  | $ | 21,562 |  |  | $ | 57,149 |  |  | $ | 45,947 |
Malaysia |  |  | 23,258 |  |  |  | 28,857 |  |  |  | 55,153 |  |  |  | 48,973 |
China |  |  | 28,394 |  |  |  | 46,585 |  |  |  | 49,504 |  |  |  | 85,238 |
United States |  |  | 15,750 |  |  |  | 19,553 |  |  |  | 34,493 |  |  |  | 43,316 |
Rest of the World |  |  | 76,160 |  |  |  | 100,669 |  |  |  | 151,993 |  |  |  | 191,509 |
Total net sales |  | $ | 168,921 |  |  | $ | 217,226 |  |  | $ | 348,292 |  |  | $ | 414,983 |
Schedules of Concentration of Risk, by Risk Factor [Table Text Block] |
|  | Three Months Ended |  |  | Six Months Ended |
|  | July 1, |  |  | June 25, |  |  | July 1, |  |  | June 25, |
|  | 2023 |  |  | 2022 |  |  | 2023 |  |  | 2022 |
Customers individually accounting for more than 10% of net sales |  | two |  |  |  | * |  |  | one |  |  |  | * |
Percentage of net sales |  |  | 25 | % |  |  | * |  |  |  | 13 | % |  |  | * |

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