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v3.23.3

Note 1 - Summary of Significant Accounting Policies (Tables) | 9 Months Ended
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Sep. 30, 2023
Notes Tables |
Schedule of Inventory, Current [Table Text Block] |
|  | September 30, |  |  | December 31, |
|  | 2023 |  |  | 2022 |
Raw materials and purchased parts |  | $ | 106,466 |  |  | $ | 106,041 |
Work in process |  |  | 32,738 |  |  |  | 36,024 |
Finished goods |  |  | 27,469 |  |  |  | 28,076 |
Total inventories |  | $ | 166,673 |  |  | $ | 170,141 |
Property, Plant and Equipment [Table Text Block] |
|  | September 30, |  |  | December 31, |
|  | 2023 |  |  | 2022 |
Land and land improvements |  | $ | 6,830 |  |  | $ | 7,066 |
Buildings and building improvements |  |  | 37,272 |  |  |  | 31,161 |
Machinery and equipment |  |  | 107,139 |  |  |  | 105,109 |
|  |  | 151,241 |  |  |  | 143,336 |
Less accumulated depreciation and amortization |  |  | (84,636 | ) |  |  | (78,325 | )
Property, plant and equipment, net |  | $ | 66,605 |  |  | $ | 65,011 |
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] |
|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30, |  |  | September 24, |  |  | September 30, |  |  | September 24, |
|  | 2023 |  |  | 2022 |  |  | 2023 |  |  | 2022 |
Cost of sales |  | $ | 223 |  |  | $ | 161 |  |  | $ | 619 |  |  | $ | 478 |
Research and development |  |  | 849 |  |  |  | 755 |  |  |  | 2,534 |  |  |  | 2,333 |
Selling, general and administrative |  |  | 3,262 |  |  |  | 2,824 |  |  |  | 9,527 |  |  |  | 8,284 |
Total share-based compensation |  |  | 4,334 |  |  |  | 3,740 |  |  |  | 12,680 |  |  |  | 11,095 |
Income tax benefit |  |  | (45 | ) |  |  | (770 | ) |  |  | (2,883 | ) |  |  | (3,232 | )
Total share-based compensation, net |  | $ | 4,289 |  |  | $ | 2,970 |  |  | $ | 9,797 |  |  | $ | 7,863 |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30, |  |  | September 24, |  |  | September 30, |  |  | September 24, |
|  | 2023 |  |  | 2022 |  |  | 2023 |  |  | 2022 |
Weighted average common shares |  |  | 47,615 |  |  |  | 47,984 |  |  |  | 47,525 |  |  |  | 48,412 |
Effect of dilutive securities |  |  | 492 |  |  |  | 542 |  |  |  | 577 |  |  |  | 596 |
|  |  | 48,107 |  |  |  | 48,526 |  |  |  | 48,102 |  |  |  | 49,008 |
Disaggregation of Revenue [Table Text Block] |
|  | Three Months Ended |  |  | Nine Months Ended |
Disaggregated Net Sales |  | September 30, 2023 |  |  | September 24, 2022 |  |  | September 30, 2023 |  |  | September 24, 2022 |
Systems |  | $ | 73,173 |  |  | $ | 120,672 |  |  | $ | 263,469 |  |  | $ | 369,972 |
Non-systems |  |  | 77,631 |  |  |  | 86,015 |  |  |  | 235,627 |  |  |  | 251,698 |
Total net sales |  | $ | 150,804 |  |  | $ | 206,687 |  |  | $ | 499,096 |  |  | $ | 621,670 |
|  | Three Months Ended |  |  | Nine Months Ended |
Disaggregated Net Sales |  | September 30, 2023 |  |  | September 24, 2022 |  |  | September 30, 2023 |  |  | September 24, 2022 |
Malaysia |  | $ | 23,550 |  |  | $ | 24,060 |  |  | $ | 78,703 |  |  | $ | 73,033 |
Philippines |  |  | 19,983 |  |  |  | 38,852 |  |  |  | 77,132 |  |  |  | 84,799 |
China |  |  | 19,689 |  |  |  | 31,477 |  |  |  | 69,193 |  |  |  | 116,715 |
United States |  |  | 23,604 |  |  |  | 19,510 |  |  |  | 58,097 |  |  |  | 62,826 |
Rest of the World |  |  | 63,978 |  |  |  | 92,788 |  |  |  | 215,971 |  |  |  | 284,297 |
Total net sales |  | $ | 150,804 |  |  | $ | 206,687 |  |  | $ | 499,096 |  |  | $ | 621,670 |
Schedules of Concentration of Risk, by Risk Factor [Table Text Block] |
|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30, |  |  | September 24, |  |  | September 30, |  |  | September 24, |
|  | 2023 |  |  | 2022 |  |  | 2023 |  |  | 2022 |
Customers individually accounting for more than 10% of net sales |  | two |  |  | one |  |  | one |  |  |  | * |
Percentage of net sales |  |  | 22 | % |  |  | 13 | % |  |  | 13 | % |  |  | * |

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